chore(contracts): Remove updateRouter Methods to Prevent Inconsistencies

[alainncls]

What does this PR do?

Related ticket

Fixes #882

Type of change

• Chore
• Bug fix
• New feature
• Documentation update

Check list

• Unit tests for any smart contract change
• Contracts and functions are documented

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 79.31034% with 6 lines in your changes missing coverage. Please review.

Project coverage is 78.70%. Comparing base (d8af275) to head (c2c4cbc).
Report is 5 commits behind head on dev.

Files with missing lines	Patch %	Lines
contracts/src/AttestationReader.sol	75.00%	1 Missing ⚠️
contracts/src/AttestationRegistry.sol	75.00%	1 Missing ⚠️
contracts/src/ModuleRegistry.sol	75.00%	1 Missing ⚠️
contracts/src/PortalRegistry.sol	80.00%	1 Missing ⚠️
contracts/src/SchemaRegistry.sol	75.00%	1 Missing ⚠️
contracts/src/stdlib/IndexerModuleV2.sol	75.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##              dev     #883       +/-   ##
===========================================
+ Coverage   48.59%   78.70%   +30.11%     
===========================================
  Files          18       49       +31     
  Lines         391     1099      +708     
  Branches       63      186      +123     
===========================================
+ Hits          190      865      +675     
- Misses        198      231       +33     
  Partials        3        3               

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