[ENH]: Remove decorator from glm/regression

[achamma723]

Closes #3903

[github-actions]

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[codecov]

Codecov Report

Merging #3921 (202e32d) into main (0d70562) will increase coverage by 0.03%.
Report is 2 commits behind head on main.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3921      +/-   ##
==========================================
+ Coverage   91.73%   91.77%   +0.03%     
==========================================
  Files         134      134              
  Lines       15738    15728      -10     
  Branches     3275     3274       -1     
==========================================
- Hits        14437    14434       -3     
+ Misses        758      751       -7     
  Partials      543      543              

Flag	Coverage Δ
macos-latest_3.10	91.68% <ø> (+0.03%)	⬆️
macos-latest_3.11	91.68% <ø> (+0.03%)	⬆️
macos-latest_3.8	91.64% <ø> (+0.03%)	⬆️
macos-latest_3.9	91.64% <ø> (+0.03%)	⬆️
ubuntu-latest_3.10	91.68% <ø> (+0.03%)	⬆️
ubuntu-latest_3.11	91.68% <ø> (+0.03%)	⬆️
ubuntu-latest_3.8	91.64% <ø> (+0.03%)	⬆️
ubuntu-latest_3.9	91.64% <ø> (+0.03%)	⬆️
windows-latest_3.10	91.62% <ø> (+0.03%)	⬆️
windows-latest_3.11	91.62% <ø> (+0.03%)	⬆️
windows-latest_3.8	91.59% <ø> (+0.03%)	⬆️
windows-latest_3.9	91.59% <ø> (+0.03%)	⬆️

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Files Changed	Coverage Δ
nilearn/glm/regression.py	78.43% <ø> (+4.32%)	⬆️

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[ymzayek]

Thx @achamma723 ! I think minor unrelated changes went into first_level.py and test_first_level.py. It's not a big deal since it's very minimal but if you could remove those that would be great!

[ymzayek]

Hm the entry from the last PR shouldn't be showing up as a change here

[achamma723]

@ymzayek True, I think it was a merge conflict. Is it good now?

[bthirion]

This should not be part of the change, but that's truly minor.

[bthirion]

Thx !

[ymzayek]

Thx @achamma723