Minor clean-up

pkg/analysis_server/lib/src/services/completion/dart/local_reference_contributor.dart

Index: pkg/analysis_server/lib/src/services/completion/dart/local_reference_contributor.dart
diff --git a/pkg/analysis_server/lib/src/services/completion/dart/local_reference_contributor.dart b/pkg/analysis_server/lib/src/services/completion/dart/local_reference_contributor.dart
index 687a718ddabd04899bec0c8c53a5da74660996b9..2db6004e8736cb051fb9be1876d03a915d780429 100644
--- a/pkg/analysis_server/lib/src/services/completion/dart/local_reference_contributor.dart
+++ b/pkg/analysis_server/lib/src/services/completion/dart/local_reference_contributor.dart
@@ -340,7 +340,6 @@ class _LocalVisitor extends LocalDeclarationVisitor {
       EnumDeclaration enumDeclaration,
       {bool isAbstract: false,
       bool isDeprecated: false,
-      ClassDeclaration classDecl,
       int relevance: DART_RELEVANCE_DEFAULT}) {
     String completion =
         '${enumDeclaration.name.name}.${constantDeclaration.name.name}';