Remove disabled prop from collapse panels as antd deprecated

Summary: In the antd upgrade (d8677), the deprecation of the 'disabled' prop for collapse panels was overlooked. This diff removes the prop.

Test Plan: npm test & verify all tests pass; npm start and verify the Settings pages collapse menus still work.

Reviewers: alcipir, majcosta, #bitcoin_abc

Reviewed By: majcosta, #bitcoin_abc

Differential Revision: https://reviews.bitcoinabc.org/D8678