Fix for test of linking with unused type parameter.

pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart

Index: pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart
diff --git a/pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart b/pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart
index 5146687d3f3d030b94e82de6c9869ff71c84a738..95e0ff823db38af3bc2e5e496649360c18235653 100644
--- a/pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart
+++ b/pkg/analyzer/test/src/summary/summarize_ast_strong_test.dart
@@ -129,10 +129,4 @@ class LinkedSummarizeAstStrongTest extends LinkedSummarizeAstTest {
   test_syntheticFunctionType_inGenericFunction() {
     super.test_syntheticFunctionType_inGenericFunction();
   }
-
-  @override
-  @failingTest
-  test_unused_type_parameter() {
-    super.test_unused_type_parameter();
-  }
 }