Revert "Recreated composer autoload after deploy:rollback"

This reverts commit 1e66621d1b78eeaaeb249fe8cd1404f842fe73af.
The commit does not fix all problems with shared vendor directories but instead
creates lots of other problems.

See everzet#511 for more details.
Merge pull request #542 from VoycerAG/rollback-bugfix

Revert "Recreated composer autoload after deploy:rollback"