Don't discard the value of DISABLE_REGULAR_ORG_CREATION

[adelowo]

Fixes #5882

This PR makes sure to actually use the config value while creating a user.

[codecov-io]

Codecov Report

Merging #5886 into master will decrease coverage by 0.15%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #5886      +/-   ##
==========================================
- Coverage   38.01%   37.85%   -0.16%     
==========================================
  Files         328      328              
  Lines       48328    48329       +1     
==========================================
- Hits        18370    18295      -75     
- Misses      27319    27401      +82     
+ Partials     2639     2633       -6

Impacted Files	Coverage Δ
models/user.go	48.79% <100%> (+0.04%)	⬆️
models/issue_indexer.go	57.64% <0%> (-12.95%)	⬇️
models/repo_indexer.go	44.49% <0%> (-12.29%)	⬇️
models/issue_list.go	63.11% <0%> (-7.93%)	⬇️
modules/log/xorm.go	36.61% <0%> (-7.05%)	⬇️
models/repo.go	43.85% <0%> (-0.6%)	⬇️
models/migrations/migrations.go	2.61% <0%> (+1.08%)	⬆️
modules/process/manager.go	81.15% <0%> (+4.34%)	⬆️

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[zeripath]

@adelowo might be good to add a test of this though.

[adelowo]

Yeah true, Will add a test.

[techknowlogick]

make LG-TM work