fix: remove consensus param migration from finalizeBlock

[poorphd]

Description

• There was an issue where the code for migrating consensus params was being called every time the node restarted after the upgrade.
• This code was deemed unnecessary and has been deleted.
• https://github.com/cosmos/cosmos-sdk/blob/7dbed2fc0c3ed7c285645e21cb1037d8810372ae/baseapp/baseapp.go#L523-L529

Closes: #XXXX

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[zsystm]

LGTM