Fixed strange situation when we had wxPathExists and wxDirExists with the same finctionality. Using wxPathExists instead wxFileExists (fixes bug #865628). Minor source cleaning.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@32862 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/os2/utils.cpp

@@ -431,7 +431,7 @@ wxChar* wxGetUserHome (
 
     char *wxBuffer = new wxChar[256];
 #ifndef __EMX__
-    if (sUser1 != _T(""))
+    if (!sUser1.empty())
     {
         wxChar                      zTmp[64];
 
@@ -453,7 +453,7 @@ wxChar* wxGetUserHome (
         }
     }
 #endif
-    if (sUser1 == _T(""))
+    if (sUser1.empty())
     {
         if ((zHome = wxGetenv(_T("HOME"))) != NULL)
         {
@@ -468,13 +468,6 @@ wxChar* wxGetUserHome (
     return NULL; // No home known!
 }
 
-bool wxDirExists(
-  const wxString&                   rDir
-)
-{
-    return (::DosSetCurrentDir(WXSTRINGCAST rDir));
-}
-
 wxString WXDLLEXPORT wxPMErrorToStr(
   ERRORID                           vError
 )