eliminate warning

Reference: /n/sources/patch/applied/g3p9bitwarn
Date: Sun Apr 11 20:27:51 CES 2010
Signed-off-by: quanstro@quanstro.net

--- /sys/src/cmd/postscript/g3p9bit/g3p9bit.c	Sun Apr 11 20:27:46 2010
+++ /sys/src/cmd/postscript/g3p9bit/g3p9bit.c	Sun Apr 11 20:27:44 2010
@@ -342,7 +342,6 @@
 		return 1;
 	}
 	goto loop;
-	return 0;
 }