COMP: Fixed EuclideanDistanceWithMissingValuePow2 compilation error on Visual Studio (cast value)

Code/BasicFilters/otbEuclideanDistanceWithMissingValuePow2.txx

@@ -102,7 +102,7 @@ bool
 EuclideanDistanceWithMissingValuePow2< TVector >
 ::IsMissingValue ( const ValueType & v) 
 {
-  return static_cast<bool>( _isnan( const_cast<double>( v ) ) ); 
+  return static_cast<bool>( _isnan( static_cast<double>( v ) ) ); 
 }
 
 #elif HAVE_IEEE_COMPARISONS