Dwedul/no params key

[SpicyLemon]

Description

Remove the params store key and transient store key from the app.

This is in draft because I need to test the upgrade again.

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• Targeted PR against correct branch (see CONTRIBUTING.md).
• Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• Wrote unit and integration tests
• Updated relevant documentation (docs/) or specification (x/<module>/spec/).
• Added relevant godoc comments.
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• Re-reviewed Files changed in the Github PR explorer.
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[SpicyLemon]

Closing this PR in favor of:

• Remove the params store key and transient store key from the app. #2189
• Backport: Remove the params store key and transient store key from the app: #2189. #2190

Need to get the change to main first, then will backport it to release/v1.20.x.