Stop using experiment flag for Token Highlighting

This has now been turned on to 100% for a couple of weeks so it's time
to retire the experiment flag.

Google-Bug-Id: b/200015397
Change-Id: Idf667deb1b97a0c8467c7702b40a17b5622971c3
diff --git a/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.js b/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.js
index 8901636..6facdca 100644
--- a/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.js
+++ b/polygerrit-ui/app/elements/diff/gr-diff-host/gr-diff-host_test.js
@@ -1304,7 +1304,7 @@
     test('gr-diff-host provides syntax highlighting layer', async () => {
       stubRestApi('getDiff').returns(Promise.resolve({content: []}));
       await element.reload();
-      assert.equal(element.$.diff.layers[0], element.syntaxLayer);
+      assert.equal(element.$.diff.layers[1], element.syntaxLayer);
     });
 
     test('rendering normal-sized diff does not disable syntax', () => {
@@ -1358,7 +1358,7 @@
     test('gr-diff-host provides syntax highlighting layer', async () => {
       stubRestApi('getDiff').returns(Promise.resolve({content: []}));
       await element.reload();
-      assert.equal(element.$.diff.layers[0], element.syntaxLayer);
+      assert.equal(element.$.diff.layers[1], element.syntaxLayer);
     });
 
     test('syntax layer should be disabled', () => {