CompareSameName: stop using JSONAssert

[dhalperi]

They have released some breaking changes, and it's only used here. Do we need it?

[batfish-bot]

This change is 

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 72.64%. Comparing base (67b862f) to head (eb0d7b7).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9084      +/-   ##
==========================================
- Coverage   72.64%   72.64%   -0.01%     
==========================================
  Files        3316     3316              
  Lines      169708   169703       -5     
  Branches    19952    19952              
==========================================
- Hits       123280   123274       -6     
+ Misses      37253    37252       -1     
- Partials     9175     9177       +2     

Files	Coverage Δ
...del/collections/NamedStructureEquivalenceSets.java	70.27% <100.00%> (+3.18%)	:arrow_up:

... and 5 files with indirect coverage changes