0023132: Suspicious code snippets

1) Warning in Aspect.cxx couldn't be reproduced
2) Description of changes: added 'return' statements into ReadStep(...) functions of RWStepBasic_* classes.
3) BRepFill_OffsetWire.cxx - removed dead code;
4) IFSelect_WorkSession.cxx - swapped arguments;
5) TopOpeBRep_ShapeIntersector2d.cxx - removed 'brake' statement and changed loop to if-statement because of
     void TopOpeBRep_ShapeIntersector2d::FindFFIntersection() function's call features.
6) V2d_RectangularGraphicGrid.cxx - left constants instead of functions beacuse of faster perfomance.
7) Commented unreachable code in files GeomFill_LocationGuide.cxx and TopOpeBRepTool_mkTondgE.cxx

src/IntTools/IntTools_EdgeFace.cxx

@@ -898,10 +898,10 @@ void IntTools_EdgeFace::CheckData()
       aCommonPrt.SetVertexParameter1(tm);
       aCommonPrt.SetRange1 (af1, al1);
     }
-    return 0;
+	 return 0;
   }
-
   //
+  /*
   dt=al1-af1;
   if (dt<1.e-5) {
     gp_Pnt aPF, aPL;
@@ -940,6 +940,7 @@ void IntTools_EdgeFace::CheckData()
       aCommonPrt.SetType(TopAbs_EDGE);
     }
   }
+  */
   return 0;
 }