Remove wxPM, wxWidgets port to OS/2.

This port is not used and is not being worked on, so remove it to reduce the
amount of the code which needs to be updated for every global change.

Also remove tests for VisualAge compiler which isn't used since ages.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@76533 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/colour.h

@@ -65,7 +65,7 @@ DECLARE_VARIANT_OBJECT_EXPORTED(wxColour,WXDLLIMPEXP_CORE)
     not need the wxGDIObject machinery to handle colors, please add it to the
     list of ports which do not need it.
  */
-#if defined( __WXMAC__ ) || defined( __WXMSW__ ) || defined( __WXPM__ ) || defined( __WXCOCOA__ )
+#if defined( __WXMAC__ ) || defined( __WXMSW__ ) || defined( __WXCOCOA__ )
 #define wxCOLOUR_IS_GDIOBJECT 0
 #else
 #define wxCOLOUR_IS_GDIOBJECT 1
@@ -221,8 +221,6 @@ WXDLLIMPEXP_CORE bool wxFromString(const wxString& str, wxColourBase* col);
     #include "wx/osx/colour.h"
 #elif defined(__WXCOCOA__)
     #include "wx/cocoa/colour.h"
-#elif defined(__WXPM__)
-    #include "wx/os2/colour.h"
 #endif
 
 #define wxColor wxColour