Remove StatementType

pkg/compiler/lib/src/js_backend/runtime_types.dart

Index: pkg/compiler/lib/src/js_backend/runtime_types.dart
diff --git a/pkg/compiler/lib/src/js_backend/runtime_types.dart b/pkg/compiler/lib/src/js_backend/runtime_types.dart
index be1cb867299c7aee374e4f7d3da7a37540619b4e..dcf964b30c3356b78bbedb07c44d0a8d3d881bf5 100644
--- a/pkg/compiler/lib/src/js_backend/runtime_types.dart
+++ b/pkg/compiler/lib/src/js_backend/runtime_types.dart
@@ -911,11 +911,6 @@ class TypeRepresentationGenerator implements DartTypeVisitor {
       return unaliasedType.accept(this, null);
     }
   }
-
-  visitStatementType(StatementType type, _) {
-    reporter.internalError(
-        NO_LOCATION_SPANNABLE, 'Unexpected type: $type (${type.kind}).');
-  }
 }
 
 class TypeCheckMapping implements TypeChecks {