Remove redundant imports

[jwodder]

Also move a couple imports to the top of the module

[codecov-commenter]

Codecov Report

Merging #367 (700dff2) into master (ab539e5) will increase coverage by 0.04%.
The diff coverage is 33.33%.

📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

@@            Coverage Diff             @@
##           master     #367      +/-   ##
==========================================
+ Coverage   33.59%   33.63%   +0.04%     
==========================================
  Files          51       51              
  Lines        7052     7034      -18     
  Branches     1784     1689      -95     
==========================================
- Hits         2369     2366       -3     
+ Misses       4504     4489      -15     
  Partials      179      179              

Impacted Files	Coverage Δ
src/nidm/experiment/Query.py	72.00% <ø> (+0.26%)	⬆️
...nidm/experiment/tools/nidm_affinity_propagation.py	0.00% <ø> (ø)
.../experiment/tools/nidm_agglomerative_clustering.py	0.00% <ø> (ø)
src/nidm/experiment/tools/nidm_gmm.py	0.00% <ø> (ø)
src/nidm/experiment/tools/nidm_kmeans.py	0.00% <0.00%> (ø)
src/nidm/experiment/tools/rest_statistics.py	15.15% <0.00%> (-2.50%)	⬇️
src/nidm/experiment/tools/nidm_linreg.py	56.58% <100.00%> (-0.06%)	⬇️

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[github-actions]

🚀 PR was released in v4.0.0 🚀