Remove ExpnKind::Inlined.

compiler/rustc_middle/src/ty/mod.rs

@@ -2488,9 +2488,7 @@ impl<'tcx> TyCtxt<'tcx> {
             && if self.features().collapse_debuginfo {
                 span.in_macro_expansion_with_collapse_debuginfo()
             } else {
-                // Inlined spans should not be collapsed as that leads to all of the
-                // inlined code being attributed to the inline callsite.
-                span.from_expansion() && !span.is_inlined()
+                span.from_expansion()
             }
     }