Get rid of promotedType=none annotations

pkg/analyzer/test/src/task/strong/front_end_inference_test.dart

Index: pkg/analyzer/test/src/task/strong/front_end_inference_test.dart
diff --git a/pkg/analyzer/test/src/task/strong/front_end_inference_test.dart b/pkg/analyzer/test/src/task/strong/front_end_inference_test.dart
index d50b7e52eabd6542e32706abfe4862ff5cc4780e..994733059af9e8c0ee36fc8965cc55107d14d8a1 100644
--- a/pkg/analyzer/test/src/task/strong/front_end_inference_test.dart
+++ b/pkg/analyzer/test/src/task/strong/front_end_inference_test.dart
@@ -325,10 +325,7 @@ class _InstrumentationVisitor extends RecursiveAstVisitor<Null> {
       if (node.inGetterContext() && !node.inDeclarationContext()) {
         int offset = node.offset;
         DartType type = node.staticType;
-        if (identical(type, elementType)) {
-          _instrumentation.record(uri, offset, 'promotedType',
-              const fasta.InstrumentationValueLiteral('none'));
-        } else {
+        if (!identical(type, elementType)) {
           _instrumentation.record(uri, offset, 'promotedType',
               new _InstrumentationValueForType(type));
         }