Revert "Auto merge of #92007 - oli-obk:lazy_tait2, r=nikomatsakis"

This reverts commit e7cc3bddbe, reversing
changes made to 734368a200.

compiler/rustc_trait_selection/src/traits/codegen.rs

@@ -90,11 +90,6 @@ pub fn codegen_fulfill_obligation<'tcx>(
         });
         let impl_source = drain_fulfillment_cx_or_panic(&infcx, &mut fulfill_cx, impl_source);
 
-        // We may constrain the hidden types of opaque types in this query, but this is
-        // not information our callers need, as all that information is handled by borrowck
-        // and typeck.
-        drop(infcx.inner.borrow_mut().opaque_type_storage.take_opaque_types());
-
         debug!("Cache miss: {:?} => {:?}", trait_ref, impl_source);
         Ok(&*tcx.arena.alloc(impl_source))
     })