Revert "[TTS] Fix a disabled test (OOP issue)"

This reverts commit 61329208.

Reason for revert: https://crbug.com/1140413

Original change's description:
> [TTS] Fix a disabled test (OOP issue)
>
> Speculate fix for testLivePrefetchFailoverRequestMadeAfterOpen
> which was failing with out-of-process network service error.
>
> BUG=1071721
>
> Change-Id: I95cc3bba5ffd17e38b58fc88a3ff227045fe9feb
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2486072
> Commit-Queue: Sinan Sahin <sinansahin@google.com>
> Reviewed-by: Sinan Sahin <sinansahin@google.com>
> Auto-Submit: Donn Denman <donnd@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#818664}

TBR=donnd@chromium.org,sinansahin@google.com,jds@google.com

Change-Id: I1e90b5f194fce483f3440fe125c0fd6f4c492015
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1071721
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2485107Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org>
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818833}

chrome/android/javatests/src/org/chromium/chrome/browser/contextualsearch/ContextualSearchManagerTest.java

@@ -1578,6 +1578,9 @@ public class ContextualSearchManagerTest {
     @ParameterAnnotations.UseMethodParameter(FeatureParamProvider.class)
     public void testLivePrefetchFailoverRequestMadeAfterOpen(@EnabledFeature int enabledFeature)
             throws Exception {
+        // Test fails with out-of-process network service. crbug.com/1071721
+        if (!ChromeFeatureList.isEnabled("NetworkServiceInProcess")) return;
+
         mFakeServer.reset();
         mFakeServer.setLowPriorityPathInvalid();
         simulateResolveSearch("search");