cleanup dart code completion contributors

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 a9f16dfc8197d500b127cb712de39de96c2fbb54..e495a66fc45358ab45fde11b4ad4e362a0251211 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
@@ -48,16 +48,6 @@ class LocalReferenceContributor extends DartCompletionContributor {
           optype.includeTypeNameSuggestions ||
           optype.includeVoidReturnSuggestions ||
           suggestLocalFields) {
-        // If the target is in an expression
-        // then resolve the outermost/entire expression
-        if (node is Expression) {
-          await request.resolveContainingExpression(node);
-
-          // Discard any cached target information
-          // because it may have changed as a result of the resolution
-          node = request.target.containingNode;
-        }
-
         // Do not suggest local vars within the current expression
         while (node is Expression) {
           node = node.parent;