Remove leftover debris from scripts/test.sh that screws up single tests with single.sh.
diff --git a/scripts/test.sh b/scripts/test.sh
index 48a5bf3..160f24f 100755
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -25,7 +25,6 @@
 then
   for i in "$@"
   do
-    ln -sf toybox $i
     . "$TOPDIR"/scripts/test/$i.test
   done
 else