Disable reset password link

[nickvergessen]

Fix #4008

Downstream 27676

[mention-bot]

@nickvergessen, thanks for your PR! By analyzing the history of the files in this pull request, we identified @MorrisJobke, @LukasReschke and @j-ed to be potential reviewers.

[LukasReschke]

I think that also needs to be added to \OC\Core\Controller\LostController because that is otherwise only cosmetics and not really a good security measure.

[codecov]

Codecov Report

Merging #4809 into master will decrease coverage by <.01%.
The diff coverage is 0%.

@@             Coverage Diff              @@
##             master    #4809      +/-   ##
============================================
- Coverage     54.21%   54.21%   -0.01%     
- Complexity    22147    22148       +1     
============================================
  Files          1363     1363              
  Lines         84789    84791       +2     
  Branches       1322     1322              
============================================
  Hits          45971    45971              
- Misses        38818    38820       +2

Impacted Files	Coverage Δ	Complexity Δ
config/config.sample.php	0% <ø> (ø)	0 <0> (ø)	⬇️
core/Controller/LoginController.php	76.92% <0%> (-1.21%)	38 <0> (+1)

[nickvergessen]

@LukasReschke done

[MorrisJobke]

Tested and works 👍