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/generic/combo.h

@@ -93,8 +93,6 @@ protected:
 #endif
 #elif defined(__WXMAC__)
     // Looks like there's nothing we need to override here
-#elif defined(__WXPM__)
-    virtual WXHWND GetEditHWND() const { return NULL; }
 #endif
 
     // For better transparent background rendering

include/wx/generic/dirctrlg.h

@@ -258,7 +258,7 @@ protected:
     wxDECLARE_NO_COPY_CLASS(wxDirFilterListCtrl);
 };
 
-#if !defined(__WXMSW__) && !defined(__WXMAC__) && !defined(__WXPM__)
+#if !defined(__WXMSW__) && !defined(__WXMAC__)
     #define wxDirCtrl wxGenericDirCtrl
 #endif
 

include/wx/generic/progdlgg.h

@@ -134,7 +134,7 @@ protected:
     // the maximum value
     int m_maximum;
 
-#if defined(__WXMSW__ ) || defined(__WXPM__)
+#if defined(__WXMSW__)
     // the factor we use to always keep the value in 16 bit range as the native
     // control only supports ranges from 0 to 65,535
     size_t m_factor;