chore: revert support for awsQueryError trait

[trivikr]

Issue

Internal JS-3027

This code change surfaced a bug in our error deserializer, where the error message is modeled to be in key message but the actual message is response payload with key Message.

Description

This reverts commit 351bd3a added in #3174.

Testing

Integration tests were successful.

$ yarn test:integration:legacy
yarn run v1.22.17
$ cucumber-js --fail-fast
.......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

150 scenarios (150 passed)
523 steps (523 passed)
1m43.243s
Done in 104.70s.

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