0024510: Remove unused local variables

When warnings are enabled, compilers report lots of occurrences
of unused local variables, which makes it harder to find other
meaningful warnings.
This commit does not fix all unused local variables.

Fix new type conversion warning

Code cleaned to avoid MSVC compiler warnings on unused function arguments.
Several useless pieces of code are removed.
Changes in IntTools_EdgeFace.cxx, Blend_Walking_1.gxx, Bnd_BoundSortBox.cxx, ProjLib_ProjectedCurve.cxx are reverted (separated to specific issue for more in-depth analysis).

src/ViewerTest/ViewerTest_FilletCommands.cxx

@@ -74,10 +74,6 @@ static Standard_Real tapp_angle = 1.e-2;
 static GeomAbs_Shape blend_cont = GeomAbs_C1;
 
 static BRepFilletAPI_MakeFillet* Rakk = 0;
-#ifdef DEB
-static BRepFilletAPI_MakeFillet* Rake = 0;
-static char name[100];
-#endif
 
 
 static void printtolblend(Draw_Interpretor& di)

src/ViewerTest/ViewerTest_ObjectCommands.cxx

@@ -2582,7 +2582,6 @@ Handle( Poly_Triangulation ) CalculationOfSphere( double X , double Y , double Z
 
   int i, j;
   int jStart, jEnd, numOffset;
-  int numPts, numPolys;
   double x[3], n[3], deltaPhi, deltaTheta, phi, theta, radius;
   double startTheta, endTheta, startPhi, endPhi;
   int base, numPoles=0, thetaResolution, phiResolution;
@@ -2612,9 +2611,6 @@ Handle( Poly_Triangulation ) CalculationOfSphere( double X , double Y , double Z
   localStartTheta = localStartTheta + (double)(start) * deltaTheta;
   localThetaResolution = end - start;
 
-  numPts =  mPhiResolution * localThetaResolution + 2;
-  numPolys =  mPhiResolution * 2 * localThetaResolution;
-
   // Create north pole if needed
   int number_point = 0;
   int number_pointArray = 0;

src/ViewerTest/ViewerTest_RelationCommands.cxx

@@ -1454,10 +1454,6 @@ static int VLenghtDimension(Draw_Interpretor& di, Standard_Integer argc, const c
       // On recupere les deux vertexes extremites de l'edge de face B
       TopoDS_Vertex  Vb,Vc;
       TopExp::Vertices(EdFromB,Vb,Vc);
-#ifdef DEB
-      gp_Pnt B=
-#endif
-               BRep_Tool::Pnt(Vb);
       gp_Pnt C=BRep_Tool::Pnt(Vc);
       
       // On projette le point B sur la Face car il