Don't define DO_TIMES (now in posixmodule.c)

Modules/timemodule.c

 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
@@ -62,14 +62,6 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 #include <time.h>
 #endif /* !unix */
 
-#ifdef sgi
-#define DO_TIMES
-#endif
-
-#ifdef sun
-#define DO_TIMES
-#endif
-
 #ifdef DO_TIMES
 #include <sys/times.h>
 #include <sys/param.h>