remove ./bin/install_texlive_gce.sh which shouldn't be needed

we shouldn't have needed this for a while, I think it is a cause of
startup delay, however this should have stopped other missing texlive
images in the past which is strange

entrypoint.sh

@@ -21,5 +21,4 @@ chown -R node:node /app
 
 chown -R node:node /app/bin
 
-./bin/install_texlive_gce.sh
 exec runuser -u node -- "$@"