0023604: Uninitialized variables in debug mode

Removed #ifndef DEB ... #else ... #endif directives where the variables were being initialized only in release mode.
Removed unused part of code.

src/BRepOffset/BRepOffset_Offset.cxx

@@ -1532,10 +1532,8 @@ TopoDS_Shape BRepOffset_Offset::Generated(const TopoDS_Shape& Shape) const
 	aShape.Reverse();
     }
     break;
-#ifndef DEB
   default:
     break;
-#endif
   }
 
   return aShape;