0024284: Some trivial warnings produced by ICC 14

Eliminated ICC 14 warnings:
# 82: storage class is not first (e.g. "int static f()"
# 2621: attribute "dllexport" does not apply here (e.g. "Standard_EXPORT typedef int qqint;")
# 2415: variable "..." of static storage duration was declared but never referenced
# 111: statement is unreachable (usually "break" after "return" in cycles)

src/Adaptor3d/Adaptor3d_IsoCurve.cxx

@@ -553,7 +553,6 @@ GeomAbs_CurveType Adaptor3d_IsoCurve::GetType() const {
 	  Standard_NoSuchObject::Raise("Adaptor3d_IsoCurve:NoneIso");
 	  // portage WNT
 	  return GeomAbs_OtherCurve;
-	  break;
 	}
       }
       break;