These traits exist so that folders/visitors can recurse into types of
interest: binders, types, regions, predicates, and consts. But `Region`
is non-recursive and cannot contain other types of interest, so its
methods in these traits are trivial.

This commit inlines and removes those trivial methods.

This gets rid of a blocking dependency edge from
`rustc_lint->rustc_analysis->rustc_hir_typeck->rustc_interface`

…, r=oli-obk

Remove `remap_env_constness` in queries

This removes some of the complexities with const traits. rust-lang#88119 used to be caused by this but was fixed by `param_env = param_env.without_const()`.

…ion, r=compiler-errors

Remove `TypeSuper{Foldable,Visitable}` impls for `Region`.

These traits exist so that folders/visitors can recurse into types of interest: binders, types, regions, predicates, and consts. But `Region` is non-recursive and cannot contain other types of interest, so its methods in these traits are trivial.

This commit inlines and removes those trivial methods.

r? `@compiler-errors`

Use lint via `lint_defs` instead of `lints`

This gets rid of a blocking dependency edge from `rustc_lint->rustc_analysis->rustc_hir_typeck->rustc_interface`

![image](https://user-images.githubusercontent.com/48135649/232291152-fc61e6c5-9b1e-4db1-8101-dfaa3b7d30c6.png)