makepkg: remove unused variable forgotten when moving to parseopts

Reported-by: Rafael Ascensão <rafa.almas@gmail.com>
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>

scripts/makepkg.sh.in

@@ -1286,7 +1286,7 @@ while true; do
 		-h|--help)        usage; exit $E_OK ;;
 		-V|--version)     version; exit $E_OK ;;
 
-		--)               OPT_IND=0; shift; break ;;
+		--)               shift; break ;;
 	esac
 	shift
 done