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/DrawDim/DrawDim_Angle.cdl

@@ -25,7 +25,7 @@ is
 
     Create (plane1 : Face from TopoDS; 
             plane2 : Face from TopoDS)
-    returns mutable Angle from DrawDim;
+    returns Angle from DrawDim;
     
     Plane1 (me) returns Face from TopoDS;
 	---C++: return const&

src/DrawDim/DrawDim_Distance.cdl

@@ -24,10 +24,10 @@ uses Face    from TopoDS,
 is
 
     Create (plane1 : Face from TopoDS; plane2 : Face from TopoDS)
-    returns mutable Distance from DrawDim;
+    returns Distance from DrawDim;
 
     Create (plane1 : Face from TopoDS)
-    returns mutable Distance from DrawDim;
+    returns Distance from DrawDim;
     
     Plane1 (me) returns Face from TopoDS;
 	---C++: return const&

src/DrawDim/DrawDim_PlanarAngle.cdl

@@ -28,11 +28,11 @@ is
     Create (plane : Face  from TopoDS;
             line1 : Shape from TopoDS; 
             line2 : Shape from TopoDS)
-    returns mutable PlanarAngle from DrawDim;    
+    returns PlanarAngle from DrawDim;    
 
     Create (line1 : Shape from TopoDS; 
             line2 : Shape from TopoDS)
-    returns mutable PlanarAngle from DrawDim;
+    returns PlanarAngle from DrawDim;
     
     Sector (me : mutable; inverted, reversed : Boolean from Standard);
     

src/DrawDim/DrawDim_PlanarDiameter.cdl

@@ -28,10 +28,10 @@ is
 
     Create (plane  : Face  from TopoDS;
             circle : Shape from TopoDS)
-    returns mutable PlanarDiameter from DrawDim;    
+    returns PlanarDiameter from DrawDim;    
 
     Create (circle : Shape from TopoDS)
-    returns mutable PlanarDiameter from DrawDim;
+    returns PlanarDiameter from DrawDim;
     
     DrawOn(me; dis : in out Display);
     

src/DrawDim/DrawDim_PlanarDistance.cdl

@@ -32,11 +32,11 @@ is
     Create (plane  : Face from TopoDS;
             point1 : Shape from TopoDS;
             point2 : Shape from TopoDS)
-    returns mutable PlanarDistance from DrawDim;
+    returns PlanarDistance from DrawDim;
     
     Create (geom1 : Shape from TopoDS;
             geom2 : Shape from TopoDS)
-    returns mutable PlanarDistance from DrawDim; 
+    returns PlanarDistance from DrawDim; 
     
     DrawOn(me; dis : in out Display);
 

src/DrawDim/DrawDim_PlanarRadius.cdl

@@ -27,10 +27,10 @@ is
 
     Create (plane  : Face  from TopoDS;
             circle : Shape from TopoDS)
-    returns mutable PlanarRadius from DrawDim;    
+    returns PlanarRadius from DrawDim;    
 
     Create (circle : Shape from TopoDS)
-    returns mutable PlanarRadius from DrawDim;
+    returns PlanarRadius from DrawDim;
     
     DrawOn(me; dis : in out Display);
     

src/DrawDim/DrawDim_Radius.cdl

@@ -24,7 +24,7 @@ uses Face    from TopoDS,
 is
 
     Create (cylinder : Face from TopoDS)
-    returns mutable Radius from DrawDim;
+    returns Radius from DrawDim;
     
     Cylinder (me) returns Face from TopoDS;
     ---C++: return const&