Fix lint error

ahejlsberg · ahejlsberg · commit 332468441e0d · 2019-01-28T16:30:49.000-08:00
diff --git a/src/compiler/transformers/ts.ts b/src/compiler/transformers/ts.ts
@@ -1941,7 +1941,6 @@ namespace ts {
                     break;
 
                 case SyntaxKind.TypeQuery:
-                case SyntaxKind.TypeOperator:
                 case SyntaxKind.IndexedAccessType:
                 case SyntaxKind.MappedType:
                 case SyntaxKind.TypeLiteral:
