Use a different hir type for patterns in pattern types than we use in match patterns

compiler/rustc_hir_analysis/src/errors/pattern_types.rs

@@ -2,13 +2,6 @@ use rustc_macros::Diagnostic;
 use rustc_middle::ty::Ty;
 use rustc_span::Span;
 
-#[derive(Diagnostic)]
-#[diag(hir_analysis_pattern_type_wild_pat)]
-pub(crate) struct WildPatTy {
-    #[primary_span]
-    pub span: Span,
-}
-
 #[derive(Diagnostic)]
 #[diag(hir_analysis_invalid_base_type)]
 pub(crate) struct InvalidBaseType<'tcx> {