0024830: Remove redundant keyword 'mutable' in CDL declarations

Redundant keyword 'mutable' removed in CDL files.
In IGESConvGeom_GeomBuilder, unused methods MakeXY() and MakeXYZ() removed.
Method StepAP214_AutoDesignGroupAssignment::Init() replicating same method of the base class is removed as it causes CDL extraction error after above (seemingly irrelevant) changes.

src/PCollection/PCollection_HArray1.cdl

@@ -37,14 +37,14 @@ raises
 is
 
 
-	Create (Low, Up: Integer from Standard) returns mutable HArray1
+	Create (Low, Up: Integer from Standard) returns HArray1
 		raises RangeError from Standard;
 		---Purpose: Creates an array of lower bound <Low> and 
                 -- upper bound <Up>. Range error is raised 
                 -- when <Up> is less than <Low>.
 
 	Create (Low, Up: Integer from Standard ; V : Item) 
-                returns mutable HArray1
+                returns HArray1
 		raises RangeError from Standard;
 		---Purpose: Creates an array of lower bound <Low> and 
                 -- upper bound <Up>. Range error is raised 

src/PCollection/PCollection_HArray2.cdl

@@ -34,14 +34,14 @@ raises
 is
 
 	Create (R1, R2, C1, C2: Integer from Standard) 
-               returns mutable HArray2 from PCollection
+               returns HArray2 from PCollection
 		raises RangeError from Standard;
 		---Purpose: Creates an array of lower bound <R1><C1> and 
                 -- upper bound <R2><C2>. Range Error is raised 
                 -- when <R2> is less than <R1> or <C2> is less than <C1>.
 
 	Create (R1, R2, C1, C2: Integer from Standard ; V : Item) 
-                returns mutable HArray2 from PCollection
+                returns HArray2 from PCollection
 		  raises RangeError from Standard;
 		---Purpose: Creates an array of lower bound <R1><C1> and 
                 -- upper bound <R2><C2>. RangeError is raised 

src/PCollection/PCollection_HAsciiString.cdl

@@ -31,20 +31,20 @@ is
 
 
 	Create(S : CString) 
-            returns mutable HAsciiString from PCollection;
+            returns HAsciiString from PCollection;
 	---Purpose: Creation and initialization with the string S.
 
 	Create(S : AsciiString from TCollection) 
-            returns mutable HAsciiString from PCollection;
+            returns HAsciiString from PCollection;
 	---Purpose: Creation and initialization with the string S from TCollection.
 
 	Create(C : Character from Standard)
-            returns mutable HAsciiString from PCollection;
+            returns HAsciiString from PCollection;
 	---Purpose: Creation and initialization with the character C.
 
 	Create(S : HAsciiString from PCollection;
     	       FromIndex, ToIndex : Integer from Standard) 
-	    returns mutable HAsciiString from PCollection
+	    returns HAsciiString from PCollection
 	    raises NegativeValue from Standard;
         ---Purpose: Creation of a sub-string of the string S.
         -- The sub-string starts at the index FromIndex and ends
@@ -58,19 +58,19 @@ is
         -- "cdef"
 
         Create(S : HExtendedString from PCollection)
-            returns mutable HAsciiString from PCollection
+            returns HAsciiString from PCollection
 	    raises OutOfRange from Standard;
 	---Purpose: Creation by converting an extended string to a normal
 	-- string. Raises OutOfRange if the String is not in the "Ascii range".
 	  
 	Create(R : Real from Standard ; F : CString = "%f") 
-            returns mutable HAsciiString from PCollection;
+            returns HAsciiString from PCollection;
 	---Purpose: Creation and initialization by converting the real 
 	-- value into a string. 
 	-- F describes a format using "C" conventions.
 
 	Create(I : Integer from Standard ; F : CString = "%d")
-            returns mutable HAsciiString from PCollection;
+            returns HAsciiString from PCollection;
 	---Purpose: Creation and initialization by converting the Integer
 	-- value into a string.
 	-- F describes a format using "C" conventions.
@@ -394,7 +394,7 @@ is
 	Split(me : mutable; Index  : Integer) 
         ---Level: Public
         ---Purpose: Splits a string of characters into two sub-strings.
-	returns mutable HAsciiString from PCollection
+	returns HAsciiString from PCollection
 	raises OutOfRange from Standard;
 
 	SubString(me; FromIndex, ToIndex : Integer) 
@@ -409,11 +409,11 @@ is
         --   me = "abcdefg"
         -- returns
         --   "cdef"
-	returns mutable HAsciiString from PCollection
+	returns HAsciiString from PCollection
 	raises OutOfRange from Standard;
 
         Token (me ; separators : CString=" \t" ; whichone : Integer=1) 
-                 returns mutable HAsciiString from PCollection;
+                 returns HAsciiString from PCollection;
         ---Level: Public
         ---Purpose: Extracts <aString> token from <me>.
         -- The token extracted is the indice number <num>.

src/PCollection/PCollection_HExtendedString.cdl

@@ -33,17 +33,17 @@ is
 		
 
 	Create(S : ExtendedString from TCollection) 
-            returns mutable HExtendedString from PCollection;
+            returns HExtendedString from PCollection;
 		---Purpose: Creation and initialization with the string S from
 		-- TCollection.
 
 	Create(C : ExtCharacter from Standard)
-            returns mutable HExtendedString from PCollection;
+            returns HExtendedString from PCollection;
 		---Purpose: Creation and initialisation with the character C
 
 	Create(S : HExtendedString from PCollection;
     	       FromIndex, ToIndex : Integer from Standard) 
-	    returns mutable HExtendedString from PCollection
+	    returns HExtendedString from PCollection
 	    raises NegativeValue from Standard;
                 ---Purpose: Creation of a sub-string of the string S
                 -- the sub-string starts at the index Fromindex and ends
@@ -51,11 +51,11 @@ is
                 -- Raises an exception if ToIndex is less than FromIndex 
 
         Create( astring : CString)
-            returns mutable HExtendedString from PCollection;
+            returns HExtendedString from PCollection;
         ---Purpose: Creation by converting a CString to an extended string. 
 	
         Create(S : HAsciiString from PCollection)
-            returns mutable HExtendedString from PCollection;
+            returns HExtendedString from PCollection;
 	---Purpose: Creation by converting a normal Ascii string to an extended string. 
 	
 	Append(me : mutable; S : HExtendedString from PCollection);
@@ -255,7 +255,7 @@ is
 	Split(me : mutable; Index  : Integer) 
 	---Level: Public
         ---Purpose: Splits a string of characters into two sub-strings.
-	returns mutable HExtendedString from PCollection
+	returns HExtendedString from PCollection
 	raises OutOfRange from Standard;
 
 	SubString(me; FromIndex, ToIndex : Integer) 
@@ -264,7 +264,7 @@ is
         -- The sub-string starts to the index FromIndex and ends
         -- to the index ToIndex.
         -- Raises an exception if ToIndex or FromIndex is out of bounds.
-	returns mutable HExtendedString from PCollection
+	returns HExtendedString from PCollection
 	raises OutOfRange from Standard;
 
 	UsefullLength(me) returns Integer

src/PCollection/PCollection_HSequence.cdl

@@ -30,23 +30,23 @@ raises
     	---Purpose: This class provides tools to manipulate a Sequence node.
     
     	Create( TheLast: SeqNode ; TheItem: Item)
-	    returns mutable SeqNode from PCollection;
+	    returns SeqNode from PCollection;
 
     	Create( TheItem: Item ; TheFirst: SeqNode )
-	    returns mutable SeqNode from PCollection;
+	    returns SeqNode from PCollection;
 
     	Create( ThePrevious: SeqNode ; TheNext: SeqNode ; TheItem: Item )
-	    returns mutable SeqNode from PCollection;
+	    returns SeqNode from PCollection;
 
     	Value(me) returns any Item;
         ---Level: Internal
 	    ---Purpose: Returns MyItem.
 	
-    	Next(me) returns mutable SeqNode;
+    	Next(me) returns SeqNode;
         ---Level: Internal
 	    ---Purpose: Returns MyNext.
 
-    	Previous(me) returns mutable SeqNode;
+    	Previous(me) returns SeqNode;
         ---Level: Internal
 	    ---Purpose: Returns MyPrevious.
 
@@ -129,7 +129,7 @@ raises
 is 
 
 
-	Create returns mutable HSequence;
+	Create returns HSequence;
 		---Purpose: Creation of an empty sequence.
 
 
@@ -280,7 +280,7 @@ is
 		--   me = (C B A)           
 
 	SubSequence(me; FromIndex, ToIndex : Integer) 
-		         		returns mutable HSequence
+		         		returns HSequence
 					raises OutOfRange from Standard;
                 ---Level: Public
 		---Purpose: Creation a sub-sequence with the elements from the 
@@ -296,7 +296,7 @@ is
 		--  (B C D)
               
 	Split(me : mutable; Index : Integer) 
-    	    returns mutable HSequence 
+    	    returns HSequence 
             raises OutOfRange from Standard;
                 ---Level: Public
 		---Purpose: Split a sequence into two sub-sequences.