[MAINT] Switch to setup.cfg-based configuration

[tsalo]

Closes #872.

Changes proposed in this pull request:

• Delete tedana/info.py and move its contents into setup.cfg.

[codecov]

Codecov Report

Merging #874 (01212cb) into main (40ee322) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #874   +/-   ##
=======================================
  Coverage   93.10%   93.11%           
=======================================
  Files          27       27           
  Lines        2219     2221    +2     
=======================================
+ Hits         2066     2068    +2     
  Misses        153      153           

Impacted Files	Coverage Δ
tedana/__init__.py	100.00% <100.00%> (ø)
tedana/reporting/html_report.py	100.00% <100.00%> (ø)
tedana/workflows/tedana.py	90.00% <100.00%> (ø)

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[eurunuela]

LGTM!

[tsalo]

Thanks @jbteves and @eurunuela! I'll merge now.