Remove the possible unnecessary flag

JohnTitor · Joshua Nelson · commit 0355e125bf92 · 2021-04-27T13:15:39.000-04:00
diff --git a/ci/linkcheck.sh b/ci/linkcheck.sh
@@ -28,4 +28,4 @@ else # running locally
   echo "Checking files changed in $COMMIT_RANGE: $CHANGED_FILES"
 fi
 
-exec mdbook-linkcheck $FLAGS -- $GITHUB_WORKSPACE
+exec mdbook-linkcheck $FLAGS
