(svn r9267) -Fix (r9266): some leftover includes and erronous call to ChangeWorkingDirectory (it was moved).

src/os2.cpp

@@ -158,9 +158,6 @@ void ShowOSErrorBox(const unsigned char *buf)
 
 int CDECL main(int argc, char* argv[])
 {
-	// change the working directory to enable doubleclicking in UIs
-	ChangeWorkingDirectory(argv[0]);
-
 	_random_seeds[1][1] = _random_seeds[1][0] = _random_seeds[0][1] = _random_seeds[0][0] = time(NULL);
 
 	return ttd_main(argc, argv);