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/Draw/Draw_Axis2D.cdl

@@ -26,13 +26,13 @@ uses Pnt2d from gp,
 is
 
     Create(col : Color; Size : Integer = 5)
-    returns mutable Axis2D;
+    returns Axis2D;
 
     Create(p : Pnt2d; col : Color; Size : Integer = 5)
-    returns mutable Axis2D;
+    returns Axis2D;
     
     Create(A : Ax22d from gp; col : Color; Size : Integer = 5)
-    returns mutable Axis2D;
+    returns Axis2D;
     
     DrawOn(me; dis : in out Display);
 

src/Draw/Draw_Axis3D.cdl

@@ -26,13 +26,13 @@ uses Pnt from gp,
 is
 
     Create(col : Color; Size : Integer = 5)
-    returns mutable Axis3D;
+    returns Axis3D;
 
     Create(p : Pnt; col : Color; Size : Integer = 5)
-    returns mutable Axis3D;
+    returns Axis3D;
     
     Create(A : Ax3 from gp; col : Color; Size : Integer = 5)
-    returns mutable Axis3D;
+    returns Axis3D;
     
     DrawOn(me; dis : in out Display);
 

src/Draw/Draw_Box.cdl

@@ -25,7 +25,7 @@ uses Pnt from gp,
 is
 
     Create(p1,p2 : Pnt; col : Color)
-    returns mutable Box;
+    returns Box;
     
     DrawOn(me; dis : in out Display);
     

src/Draw/Draw_Chronometer.cdl

@@ -26,7 +26,7 @@ uses
 
 is
 
-    Create returns mutable Chronometer from Draw;
+    Create returns Chronometer from Draw;
     
     
     Timer(me : mutable) returns Timer from OSD
@@ -36,7 +36,7 @@ is
     DrawOn(me; dis : in out Display);
 	---Purpose: Does nothhing,
     
-    Copy(me) returns mutable Drawable3D from Draw
+    Copy(me) returns Drawable3D from Draw
 	---Purpose: For variable copy.
     is redefined;
 	

src/Draw/Draw_Circle2D.cdl

@@ -26,7 +26,7 @@ uses
 is
 
     Create(C : Circ2d from gp; A1,A2 : Real; col : Color)
-    returns mutable Circle2D;
+    returns Circle2D;
     
     DrawOn(me; dis : in out Display);
 

src/Draw/Draw_Circle3D.cdl

@@ -26,7 +26,7 @@ uses
 is
 
     Create(C : Circ from gp; A1,A2 : Real; col : Color)
-    returns mutable Circle3D;
+    returns Circle3D;
     
     DrawOn(me; dis : in out Display);
 

src/Draw/Draw_Drawable3D.cdl

@@ -34,7 +34,7 @@ is
 	---Purpose: Returs True if the pick is outside the box
     is virtual;
     
-    Copy(me) returns mutable Drawable3D from Draw
+    Copy(me) returns Drawable3D from Draw
     is virtual;
 	---Purpose: For variable copy.
 	

src/Draw/Draw_Grid.cdl

@@ -25,7 +25,7 @@ is
      
     	---Purpose: Creates a grid.
 
-	returns mutable Grid from Draw ;
+	returns Grid from Draw ;
 
 
     Steps (me : mutable; StepX, StepY, StepZ : Real from Standard)

src/Draw/Draw_Marker2D.cdl

@@ -26,10 +26,10 @@ uses
 
 is
     Create(P : Pnt2d from gp; T : MarkerShape from Draw; C : Color from Draw; 
-    	Size : Integer = 5) returns mutable Marker2D from Draw;
+    	Size : Integer = 5) returns Marker2D from Draw;
 	
     Create(P : Pnt2d from gp; T : MarkerShape from Draw; C : Color from Draw; 
-    	RSize : Real) returns mutable Marker2D from Draw;
+    	RSize : Real) returns Marker2D from Draw;
     
     ChangePos(me : mutable) returns Pnt2d from gp;
     ---C++: return &

src/Draw/Draw_Marker3D.cdl

@@ -26,10 +26,10 @@ uses
 
 is
     Create(P : Pnt from gp; T : MarkerShape from Draw; C : Color from Draw; 
-    	ISize : Integer = 5) returns mutable Marker3D from Draw;
+    	ISize : Integer = 5) returns Marker3D from Draw;
 	
     Create(P : Pnt from gp; T : MarkerShape from Draw; C : Color from Draw; 
-    	RSize : Real) returns mutable Marker3D from Draw;
+    	RSize : Real) returns Marker3D from Draw;
 
     ChangePos(me : mutable) returns Pnt from gp;
     ---C++: return &

src/Draw/Draw_Number.cdl

@@ -24,7 +24,7 @@ uses
     Interpretor from Draw
 
 is
-    Create (V : Real) returns mutable Number from Draw;
+    Create (V : Real) returns Number from Draw;
 
     Value(me) returns Real
     is static;
@@ -35,7 +35,7 @@ is
     DrawOn(me; dis : in out Display);
 	---Purpose: Does nothhing,
     
-    Copy(me) returns mutable Drawable3D from Draw
+    Copy(me) returns Drawable3D from Draw
 	---Purpose: For variable copy.
     is redefined;
 	

src/Draw/Draw_Segment2D.cdl

@@ -26,7 +26,7 @@ uses Pnt2d from gp,
 is
 
     Create(p1,p2 : Pnt2d; col : Color)
-    returns mutable Segment2D;
+    returns Segment2D;
     
     DrawOn(me; dis : in out Display);
     

src/Draw/Draw_Segment3D.cdl

@@ -25,7 +25,7 @@ uses Pnt from gp,
 is
 
     Create(p1,p2 : Pnt; col : Color)
-    returns mutable Segment3D;
+    returns Segment3D;
     
     DrawOn(me; dis : in out Display);
     

src/Draw/Draw_Text2D.cdl

@@ -26,11 +26,11 @@ uses Pnt2d from gp,
 is
 
     Create(p : Pnt2d; T : CString; col : Color)
-    returns mutable Text2D from Draw;
+    returns Text2D from Draw;
     
     Create(p : Pnt2d; T : CString; col : Color;
     	   moveX : Integer; moveY : Integer)
-    returns mutable Text2D from Draw;
+    returns Text2D from Draw;
     
     SetPnt2d(me : mutable; p : Pnt2d);
 

src/Draw/Draw_Text3D.cdl

@@ -26,11 +26,11 @@ uses Pnt from gp,
 is
 
     Create(p : Pnt; T : CString; col : Color)
-    returns mutable Text3D from Draw;
+    returns Text3D from Draw;
     
     Create(p : Pnt; T : CString; col : Color;
     	   moveX : Real; moveY : Real)
-    returns mutable Text3D from Draw;
+    returns Text3D from Draw;
 
     SetPnt(me : mutable; p : Pnt);