Disable DX workaround for 611-checker-simplify-if

The current D8 output is closer to DX.

Bug: 65168732
Test: art/test/run-test ... --build-with-javac-dx --build-with-d8 611-checker-simplify-if
Change-Id: I8831bc0ea4363e1e52cafcd0df83a85059761362
diff --git a/test/611-checker-simplify-if/build b/test/611-checker-simplify-if/build
deleted file mode 100644
index 10ffcc5..0000000
--- a/test/611-checker-simplify-if/build
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/bash
-#
-# Copyright 2017 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# See b/65168732
-export USE_D8=false
-
-./default-build "$@"