Rollup merge of #135914 - compiler-errors:vanquish-query-norm, r=jackh726

Remove usages of `QueryNormalizer` in the compiler

I want to get rid of the `QueryNormalizer`, possibly changing it to be special cased just for normalizing erasing regions, or perhaps adapting `normalize_erasing_regions` to use the assoc type normalizer if caching is sufficient and removing it altogther.

This removes the last two usages of `.query_normalize` in the *compiler*. There are a few usages left in rustdoc and clippy, which exist only because the query normalizer is more resilient to errors and non-well-formed alias types. I will remove those next.

r? lcnr or reassign

Author: matthiaskrgr