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/MoniTool/MoniTool_AttrList.cdl

@@ -44,7 +44,7 @@ is
     --           Returns True when done, False if this attribute did not exist
 
     GetAttribute (me; name : CString; type : Type from Standard;
-    	    	  val : out mutable Transient)  returns Boolean;
+    	    	  val : out Transient)  returns Boolean;
     ---Purpose : Returns an attribute from its name, filtered by a type
     --           If no attribute has this name, or if it is not kind of this
     --           type, <val> is Null and returned value is False

src/MoniTool/MoniTool_IntVal.cdl

@@ -22,7 +22,7 @@ uses Integer
 
 is
 
-    Create (val : Integer = 0) returns mutable IntVal;
+    Create (val : Integer = 0) returns IntVal;
 
     Value (me) returns Integer;
 

src/MoniTool/MoniTool_Option.cdl

@@ -42,16 +42,16 @@ uses CString, Transient, Type from Standard,
 
 is
 
-    Create (atype : Type; aname : CString) returns mutable Option;
+    Create (atype : Type; aname : CString) returns Option;
     ---Purpose : Creates an Option from scratch, with a Type and a Name
 
-    Create (aval : TypedValue; aname : CString = "") returns mutable Option;
+    Create (aval : TypedValue; aname : CString = "") returns Option;
     ---Purpose : Creates an Option for a TypedValue (for basic, non-cdl-typed,
     --           value : integer, real, string ...)
     --           If <name> is not given, the name of the TypedValue is taken
     --           Remark that Type is then enforced to TCollection_HAsciiString
 
-    Create (other : Option; aname : CString = "") returns mutable Option;
+    Create (other : Option; aname : CString = "") returns Option;
     ---Purpose : Creates an Option from another one, the name can be redefined
     --           The Type remains the same. The list of Items, too, it can also
     --           be later duplicated by call to Duplicate

src/MoniTool/MoniTool_RealVal.cdl

@@ -22,7 +22,7 @@ uses Real
 
 is
 
-    Create (val : Real = 0.0) returns mutable RealVal;
+    Create (val : Real = 0.0) returns RealVal;
 
     Value (me) returns Real;
 

src/MoniTool/MoniTool_SignShape.cdl

@@ -23,7 +23,7 @@ uses CString, Transient, AsciiString
 
 is
 
-    Create returns mutable SignShape;
+    Create returns SignShape;
 
     Name (me) returns CString;
     ---Purpose : Returns "SHAPE"

src/MoniTool/MoniTool_TransientElem.cdl

@@ -32,7 +32,7 @@ uses CString,
 
 is
 
-    Create (akey : any Transient from Standard) returns mutable TransientElem;
+    Create (akey : any Transient from Standard) returns TransientElem;
     ---Purpose : Creates a TransientElem with a Value. This Value can then not be
     --           changed. It is used by the Hasher to compute the HashCode,
     --           which will then be stored for an immediate reading.

src/MoniTool/MoniTool_TypedValue.cdl

@@ -43,7 +43,7 @@ is
 
     Create (name : CString;
     	    type : ValueType from MoniTool = MoniTool_ValueText;
-	    init : CString = "")  returns mutable TypedValue;
+	    init : CString = "")  returns TypedValue;
     ---Purpose : Creates a TypedValue, with a name
     --           
     --           type gives the type of the parameter, default is free text
@@ -54,7 +54,7 @@ is
     --           init gives an initial value. If it is not given, the
     --           TypedValue begins as "not set", its value is empty
 
-    Create (other : TypedValue) returns mutable TypedValue;
+    Create (other : TypedValue) returns TypedValue;
     ---Purpose : Creates a TypedValue from another one, by duplication
 
     Internals (me; interp :  out ValueInterpret; satisf : out ValueSatisfies;
@@ -215,7 +215,7 @@ is
     CStringValue (me) returns CString;
     ---Purpose : Returns the value, as a cstring. Empty if not set.
 
-    HStringValue (me) returns mutable HAsciiString;
+    HStringValue (me) returns HAsciiString;
     ---Purpose : Returns the value, as a Handle (can then be shared)
     --           Null if not defined
 
@@ -246,7 +246,7 @@ is
     --             does not satisfy the specification
     --           Can be redefined to be managed (in a subclass)
 
-    SetHStringValue (me : mutable; hval : mutable HAsciiString)
+    SetHStringValue (me : mutable; hval : HAsciiString)
     ---Purpose : Forces a new Handle for the Value
     --           It can be empty, else (if Type is not free Text), it must
     --           satisfy the specification.