Remove trie deduplication

[blakeembrey]

Closes #430. The trie required a non-greedy match to work, and that results in an edge case with wildcards at the end of a path in end: false mode because it'd match up to the first match instead of all the way to the end. I hadn't anticipated the wildcard usage + end: false, then using the resulting path instead of originalPath in Express, in my refactoring.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.74%. Comparing base (5bcd30b) to head (97c7249).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #431      +/-   ##
==========================================
- Coverage   99.75%   99.74%   -0.02%     
==========================================
  Files           1        1              
  Lines         416      389      -27     
  Branches      157      148       -9     
==========================================
- Hits          415      388      -27     
  Misses          1        1              

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[blakeembrey]

This is may be the clearest example of the issue and why it's impossible with the trie. The wildcard is expected to go over the first .:ext and use the last one, but with it being lazy it'd grab the first only.

And we can't just make it greedy with the trie because it breaks /*path{.:ext} where .:ext is optional, because then the greedy one just gobbles up everything and leaves .:ext always unmatched.

Unfortunately the trie was added to improve regex performance a little bit by deduplicating prefixes, so that optimization isn't possible without breaking this wildcard pattern in use.