Disable Feed v2 for New Tab Page card test.

When the Feed V2 config was added to the fieldtrial config, this
test started to fail. We should have a separate test for V2.

Change-Id: I92bbf42392cd3f81293d23053ca754da453e9574
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2421819Reviewed-by: Peter Williamson <petewil@chromium.org>
Commit-Queue: Justin DeWitt <dewittj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#809108}

chrome/android/feed/core/javatests/src/org/chromium/chrome/browser/feed/network_fetch/FeedNewTabPageCardInstrumentationTest.java

@@ -37,6 +37,7 @@ import java.io.IOException;
 @RunWith(ChromeJUnit4ClassRunner.class)
 @CommandLineFlags.Add(ChromeSwitches.DISABLE_FIRST_RUN_EXPERIENCE)
 @Features.EnableFeatures(ChromeFeatureList.INTEREST_FEED_CONTENT_SUGGESTIONS)
+@Features.DisableFeatures(ChromeFeatureList.INTEREST_FEED_V2)
 public final class FeedNewTabPageCardInstrumentationTest {
     @Rule
     public ChromeActivityTestRule<ChromeActivity> mActivityTestRule =