removed unnecessary files

packages/toc/build-dev.sh

@@ -1,8 +0,0 @@
-npm i
-npm run build
-cd ../jupyterlab
-jlpm run remove:package jupyterlab-toc
-jlpm run add:sibling ../jupyterlab-toc
-jlpm run build
-cd ../jupyterlab-celltags
-