Use rustc internal lints in Clippy

[flip1995]

In rust-lang/rust#59316 internal lints were implemented. Let's also activate those in Clippy.

This includes removing the internal lint

rust-clippy/clippy_lints/src/utils/internal_lints.rs

Lines 59 to 68 in fbb3a47

	declare_clippy_lint! {
	/// **What it does:** Checks for the presence of the default hash types "HashMap" or "HashSet"
	/// and recommends the FxHash* variants.
	///
	/// **Why is this bad?** The FxHash variants have better performance
	/// and we don't need any collision prevention in clippy.
	pub DEFAULT_HASH_TYPES,
	internal,
	"forbid HashMap and HashSet and suggest the FxHash* variants"
	}

from Clippy, since it got uplifted.