chore: remove the hash-utils dependency from the KAMT

[Stebalien]

We still need to do this for the HAMT, but this is progress.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.96%. Comparing base (ed6d34a) to head (fe76599).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2099   +/-   ##
=======================================
  Coverage   75.95%   75.96%           
=======================================
  Files         154      154           
  Lines       15778    15771    -7     
=======================================
- Hits        11984    11980    -4     
+ Misses       3794     3791    -3     

Files with missing lines	Coverage Δ
ipld/kamt/src/id.rs	100.00% <100.00%> (+15.78%)	⬆️

... and 2 files with indirect coverage changes