fix(router): migration to delete chains

[cjcobb23]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 95.40230% with 4 lines in your changes missing coverage. Please review.

Project coverage is 93.46%. Comparing base (ca28340) to head (31f78aa).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
contracts/router/src/contract.rs	0.00%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #710   +/-   ##
=======================================
  Coverage   93.45%   93.46%           
=======================================
  Files         233      233           
  Lines       34669    34706   +37     
=======================================
+ Hits        32400    32437   +37     
  Misses       2269     2269           

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