[SR-12248] Remove old errors/notes

Author: HassanElDesouky

test/Sema/enum_conformance_synthesis.swift

@@ -61,7 +61,7 @@ func customHashable() {
 enum InvalidCustomHashable {
   case A, B
 
-  var hashValue: String { return "" } // expected-note {{previously declared here}}
+  var hashValue: String { return "" }
 }
 func ==(x: InvalidCustomHashable, y: InvalidCustomHashable) -> String {
   return ""

test/decl/var/property_wrappers.swift

@@ -837,12 +837,8 @@ struct WrapperWithProjectedValue<T> {
 class TestInvalidRedeclaration {
   @WrapperWithProjectedValue var i = 17
   // expected-note@-1 {{'i' previously declared here}}
-  // expected-note@-2 {{'$i' previously declared here}}
-  // expected-note@-3 {{'_i' previously declared here}}
   @WrapperWithProjectedValue var i = 39
   // expected-error@-1 {{invalid redeclaration of 'i'}}
-  // expected-error@-2 {{invalid redeclaration of '$i'}}
-  // expected-error@-3 {{invalid redeclaration of '_i'}}
 }
 
 // ---------------------------------------------------------------------------