removed username from users.update_profile_success

[Cyber1000]

There is no username in english (or other languages)

So in german following can be read: "Der Account „%s“ wurde aktualisiert." (literally with the %s)
Since gitea/routers/admin/users.go doesn't add a username for users.update_profile_success and no other language seems to add a %s in translation for this string I removed it.

(see also my bugreport in #4482 (comment), which addresses more or less 2 "bugs"/inconsistencies)

[zeripath]

Hi!

Our translations are handled on crowdin.

https://crowdin.com/translate/gitea/all/enus-de

Please change this there.

[Cyber1000]

Thanks for the info, should definitely have read the contribution page before, thought it was only a small fix.
There is already a (now) 8 times upvoted fix (https://crowdin.com/translate/gitea/all/enus-de#q=users.update_profile_success) for the last 10 months, is there a special moment (release?) when this gets approved? It seems approved but the approval is downvoted 7 times, so will anyone notice this?

[codecov-io]

Codecov Report

Merging #7101 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #7101      +/-   ##
==========================================
+ Coverage   41.54%   41.54%   +<.01%     
==========================================
  Files         446      446              
  Lines       60825    60825              
==========================================
+ Hits        25267    25272       +5     
+ Misses      32273    32269       -4     
+ Partials     3285     3284       -1

Impacted Files	Coverage Δ
models/gpg_key.go	56.66% <0%> (+0.83%)	⬆️
models/repo_list.go	73.09% <0%> (+1.01%)	⬆️

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