[ticket/11862] Correct var names in user_delete() events due to prune-users

The prune-users feature modified the names of the used variables in this
function. However, the variable names for the two events in this function
were not changed to reflect that. This patch will take care of it.

PHPBB3-11862
Merge remote-tracking branch 'Marc/ticket/11862' into develop

* Marc/ticket/11862:
  [ticket/11862] Correct var names in user_delete() events due to prune-users
[ticket/11862] Correct var names in user_delete() events due to prune-users

Fix comments after incorrect merge of previous PR.

PHPBB3-11862
Merge remote-tracking branch 'Marc/ticket/11862' into develop

* Marc/ticket/11862:
  [ticket/11862] Correct var names in user_delete() events due to prune-users
[ticket/11873] Do not hash very large passwords in order to safe resources.

PHPBB3-11873
[ticket/11873] Add unit test for large password input.

The password should be rejected quite fast.

PHPBB3-11873
Merge branch 'ticket/11873' into prep-release-3.0.12

* ticket/11873:
  [ticket/11873] Add unit test for large password input.
  [ticket/11873] Do not hash very large passwords in order to safe resources.
[prep-release-3.0.12] Update changelog for 3.0.12 release.
Merge branch 'prep-release-3.0.12' into develop-olympus

* prep-release-3.0.12:
  [prep-release-3.0.12] Update changelog for 3.0.12 release.
  [ticket/11873] Add unit test for large password input.
  [ticket/11873] Do not hash very large passwords in order to safe resources.
Merge branch 'develop-olympus' into develop

* develop-olympus:
  [prep-release-3.0.12] Update changelog for 3.0.12 release.
  [ticket/11873] Add unit test for large password input.
  [ticket/11873] Do not hash very large passwords in order to safe resources.