credentials: remove upstreamed url matching functions

[skshetry]

It was released on 0.20.49. See jelmer/dulwich#1079.

cc @dtrifiro

[codecov-commenter]

Codecov Report

Base: 82.22% // Head: 82.74% // Increases project coverage by +0.51% 🎉

Coverage data is based on head (9a54d31) compared to base (42cbd91).
Patch coverage: 100.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #188      +/-   ##
==========================================
+ Coverage   82.22%   82.74%   +0.51%     
==========================================
  Files          25       25              
  Lines        3483     3454      -29     
  Branches      603      595       -8     
==========================================
- Hits         2864     2858       -6     
+ Misses        529      507      -22     
+ Partials       90       89       -1     

Impacted Files	Coverage Δ
src/scmrepo/git/backend/dulwich/credentials.py	26.82% <100.00%> (+1.60%)	⬆️

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