Remove Palm OS port.

The platform targeted by this port doesn't exist any more and the port never
achieved really working state so remove the code to avoid having to maintain
it.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@70345 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/encinfo.h

@@ -35,7 +35,6 @@
 struct WXDLLIMPEXP_CORE wxNativeEncodingInfo
 {
     wxString facename;          // may be empty meaning "any"
-#ifndef __WXPALMOS__
     wxFontEncoding encoding;    // so that we know what this struct represents
 
 #if defined(__WXMSW__) || \
@@ -60,7 +59,6 @@ struct WXDLLIMPEXP_CORE wxNativeEncodingInfo
 #else
     #error "Unsupported toolkit"
 #endif
-#endif // !__WXPALMOS__
     // this struct is saved in config by wxFontMapper, so it should know to
     // serialise itself (implemented in platform-specific code)
     bool FromString(const wxString& s);