Revert "[ticket/11766] Hide edit, quote and delete buttons if topic is locked"

This reverts commit d71fd5d66091b0ea557ece2e53a02094415362d6.
Merge branch 'develop-olympus' into develop-ascraeus

* develop-olympus:
  Revert "[ticket/11766] Hide edit, quote and delete buttons if topic is locked"

Conflicts:
	phpBB/viewtopic.php