rm config.buildserver.yml, ANDROID_HOME set in /etc/profile.d/bsenv.sh

`fdroid build_local_run` has been running without this for a long time.
This commit is contained in:
Internal Server Error - Gitea: Git with a cup of tea
500 Internal Server Error

Gitea Version: 1.28.0+dev-477-g8b6ad49a5f