delete send-info measurements. This experiment is not being maintained

pkg/compiler/lib/src/typechecker.dart

Index: pkg/compiler/lib/src/typechecker.dart
diff --git a/pkg/compiler/lib/src/typechecker.dart b/pkg/compiler/lib/src/typechecker.dart
index be25edf0f08303263380249cc08cf712f9082e50..b4ad1f8c289959b0039c4b18d57fdce5f619d2d7 100644
--- a/pkg/compiler/lib/src/typechecker.dart
+++ b/pkg/compiler/lib/src/typechecker.dart
@@ -443,7 +443,7 @@ class TypeCheckerVisitor extends Visitor<DartType> {
     if (result == null) {
       reporter.internalError(node, 'Type is null.');
     }
-    return _record(node, result);
+    return result;
   }
 
   void checkTypePromotion(Node node, TypePromotion typePromotion,
@@ -1151,24 +1151,6 @@ class TypeCheckerVisitor extends Visitor<DartType> {
     return null;
   }
 
-  static bool _fyiShown = false;
-  DartType _record(Node node, DartType type) {
-    if (node is! Expression) return type;
-    if (const bool.fromEnvironment('send_stats') &&
-        executableContext != null &&
-        // TODO(sigmund): enable also in core libs.
-        !executableContext.library.isPlatformLibrary &&
-        !type.isDynamic) {
-      if (!_fyiShown) {
-        print('FYI experiment to collect send stats is on: '
-            'caching types of expressions');
-        _fyiShown = true;
-      }
-      elements.typesCache[node] = type;
-    }
-    return type;
-  }
-
   DartType visitSend(Send node) {
     Element element = elements[node];