Removed bogus ValidateDocData, XP_ReBuffer and XP_Trace stubs. They exists in

their correct form in nsStubs.cpp

webshell/tests/viewer/nsUnixMain.cpp

@@ -116,6 +116,3 @@ int main(int argc, char **argv)
 }
 
 
-void ValidateDocData() { }
-void XP_ReBuffer() { }
-void XP_Trace() { }