Remove MSVC6 support.

Don't support this compiler any more, this allows to get rid of tons of
MSVC6-specific workarounds, in particular we can now use Bind() and natural
template functions calls in the library code.

Also remove MSVC6 project and solution files and don't generate them when
bakefile_gen is ran any more (removing the remaining occurrences of msvc6prj
from the bakefiles results in weird bake-time errors, so it's simpler to just
leave them there).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76532 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/scrolwin.h

@@ -452,20 +452,9 @@ protected:
     }
 
 private:
-    // VC++ 6 gives warning for the declaration of template member function
-    // without definition
-#ifndef __VISUALC6__
     wxDECLARE_NO_COPY_CLASS(wxScrolled);
-#endif
 };
 
-#ifdef __VISUALC6__
-    // disable the warning about non dll-interface class used as base for
-    // dll-interface class: it's harmless in this case
-    #pragma warning(push)
-    #pragma warning(disable:4275)
-#endif
-
 // for compatibility with existing code, we provide wxScrolledWindow
 // "typedef" for wxScrolled<wxPanel>. It's not a real typedef because we
 // want wxScrolledWindow to show in wxRTTI information (the class is widely
@@ -487,8 +476,4 @@ public:
 
 typedef wxScrolled<wxWindow> wxScrolledCanvas;
 
-#ifdef __VISUALC6__
-    #pragma warning(pop)
-#endif
-
 #endif // _WX_SCROLWIN_H_BASE_