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/chartype.h

@@ -28,8 +28,6 @@
         #define wxUSE_WCHAR_T 0
     #elif defined(__WATCOMC__)
         #define wxUSE_WCHAR_T 0
-    #elif defined(__VISAGECPP__) && (__IBMCPP__ < 400)
-        #define wxUSE_WCHAR_T 0
     #else
         /* add additional compiler checks if this fails */
         #define wxUSE_WCHAR_T 1
@@ -47,7 +45,7 @@
 
    Actually MinGW has tchar.h, but it does not include wchar.h
  */
-#if defined(__VISAGECPP__) || defined(__MINGW32__) || defined(__WATCOMC__)
+#if defined(__MINGW32__) || defined(__WATCOMC__)
     #ifndef HAVE_WCHAR_H
         #define HAVE_WCHAR_H
     #endif
@@ -74,7 +72,7 @@
 #elif defined(HAVE_WCSTR_H)
     /* old compilers have relevant declarations here */
     #include <wcstr.h>
-#elif defined(__FreeBSD__) || defined(__DARWIN__) || defined(__EMX__)
+#elif defined(__FreeBSD__) || defined(__DARWIN__)
     /* include stdlib.h for wchar_t */
     #include <stdlib.h>
 #endif /* HAVE_WCHAR_H */
@@ -104,15 +102,6 @@
     #include <stddef.h>
     #include <string.h>
     #include <ctype.h>
-#elif 0 && defined(__VISAGECPP__) && (__IBMCPP__ >= 400)
-    /* VZ: the old VisualAge definitions were completely wrong and had no    */
-    /*     chance at all to work in Unicode build anyhow so let's pretend    */
-    /*     that VisualAge does _not_ support TCHAR for the moment (as        */
-    /*     indicated by "0 &&" above) until someone really has time to delve */
-    /*     into Unicode issues under OS/2 */
-
-    /* VisualAge 4.0+ supports TCHAR */
-    #define wxHAVE_TCHAR_SUPPORT
 #endif /* compilers with (good) TCHAR support */
 
 #ifdef wxHAVE_TCHAR_SUPPORT