Commit
8e2329e2ec7e4fbd40d61253db587f0b93c47602
by laforgeredmine: We no longer need the hmac diff
The upstream redmine container/image has meanwhile upgraded to a more
recent version of the ruby base modules which don't require to be
patched anymore.
Change-Id: I0fd7684bdab55eece889a7d9e524ec2a25b30a3b