Clean up a couple of hints

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

Index: pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart
diff --git a/pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart b/pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart
index 29f463b66db833d5cf1bd8b2fd57fc1e41294dca..e48e8e12f5fb1c92385cfdce73ce80268edd143e 100644
--- a/pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart
+++ b/pkg/analysis_server/lib/src/services/completion/dart/arglist_contributor.dart
@@ -24,14 +24,6 @@ int _argCount(DartCompletionRequest request) {
   return 0;
 }
 
-String _getParamType(ParameterElement param) {
-  DartType type = param.type;
-  if (type != null) {
-    return type.displayName;
-  }
-  return 'dynamic';
-}
-
 /**
  * If the containing [node] is an argument list
  * or named expression in an argument list
@@ -191,6 +183,14 @@ class ArgListContributor extends DartCompletionContributor {
     // DEPRECATED... argument lists are no longer suggested.
     // See https://github.com/dart-lang/sdk/issues/25197
 
+    // String _getParamType(ParameterElement param) {
+    //   DartType type = param.type;
+    //   if (type != null) {
+    //     return type.displayName;
+    //   }
+    //   return 'dynamic';
+    // }
+
     // StringBuffer completion = new StringBuffer('(');
     // List<String> paramNames = new List<String>();
     // List<String> paramTypes = new List<String>();