[ENH] Adds input check for remove_distance()

[rmarkello]

No description provided.

[codecov-io]

Codecov Report

Merging #28 into master will increase coverage by 0.01%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #28      +/-   ##
==========================================
+ Coverage   98.19%   98.21%   +0.01%     
==========================================
  Files          14       14              
  Lines         611      615       +4     
==========================================
+ Hits          600      604       +4     
  Misses         11       11

Impacted Files	Coverage Δ
abagen/correct.py	100% <100%> (ø)	⬆️
abagen/tests/test_correct.py	100% <100%> (ø)	⬆️

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