MAINT: Remove unused files

test-profile/custom/caosdb-server/caosdb-webui/src/ext/js/customfile.js

-///////////////////////////////////////////////////////////////////////////////
-//           Put your custom JavaScript files into this directory.           //
-///////////////////////////////////////////////////////////////////////////////
-
-// Please remember that CaosDB is licensed under the AGPL, so basically your
-// users have the right to obtain your source code as well.

test-profile/theme-linkahead

-../demo/theme-linkahead
\ No newline at end of file