Remove support for Digital Mars compiler.

This compilers is not being developed any longer since many years, drop
support for it.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76547 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/appbase.cpp

@@ -660,11 +660,6 @@ void wxAppConsoleBase::OnUnhandledException()
 bool wxAppConsoleBase::OnExceptionInMainLoop()
 {
     throw;
-
-    // some compilers are too stupid to know that we never return after throw
-#if defined(__DMC__) || (defined(_MSC_VER) && _MSC_VER < 1200)
-    return false;
-#endif
 }
 
 #endif // wxUSE_EXCEPTIONS