Clean up a couple of hints

pkg/analyzer/lib/src/generated/element.dart

Index: pkg/analyzer/lib/src/generated/element.dart
diff --git a/pkg/analyzer/lib/src/generated/element.dart b/pkg/analyzer/lib/src/generated/element.dart
index 6f459991ceee484a681e41aa3c45679f8f4ea547..360ca234bb5de67140148d7f4b7691b77f6c51da 100644
--- a/pkg/analyzer/lib/src/generated/element.dart
+++ b/pkg/analyzer/lib/src/generated/element.dart
@@ -8130,7 +8130,6 @@ abstract class Member implements Element {
    * Return the type that results from replacing the type parameters in the
    * given [type] with the type arguments associated with this member.
    */
-  @deprecated
   DartType substituteFor(DartType type) {
     if (type == null) {
       return null;