Revert "Cache downloaded wheel when range requests aren't supported" (#6470)

## Summary

This reverts commit 7d92915f3d.

I thought this would be a net performance improvement, but we've now had
multiple reports that this made locking _extremely_ slow. I also tested
this today with a very large codebase against a registry that does not
support range requests, and the number of downloads was sort of wild to
watch. Reverting the reduced resolution time by over 50%.

Closes #6104.

crates/uv-client/src/error.rs

@@ -173,6 +173,10 @@ pub enum ErrorKind {
         #[source] Box<pypi_types::MetadataError>,
     ),
 
+    /// The metadata file was not found in the wheel.
+    #[error("Metadata file `{0}` was not found in {1}")]
+    MetadataNotFound(WheelFilename, String),
+
     /// An error that happened while making a request or in a reqwest middleware.
     #[error(transparent)]
     WrappedReqwestError(#[from] WrappedReqwestError),