Remove obsolete flag.

chrome/android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.java

Index: chrome/android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.java b/chrome/android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.java
index ac6b2e441bcdc913216f12240c002e0b7c86494d..dc0b7db7afffee997957ce4a222527c04e1a1e19 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/util/FeatureUtilities.java
@@ -157,30 +157,6 @@ public class FeatureUtilities {
         nativeSetIsInMultiWindowMode(isInMultiWindowMode);
     }
 
-    /**
-     * Check whether tab switching is enabled for the current context.
-     * Note that this may return false if native library is not yet ready.
-     * @param context The context
-     * @return Whether tab switching is enabled for the current context.
-     */
-    public static boolean isTabSwitchingEnabled(Context context) {
-        return !isDocumentMode(context) || isTabSwitchingEnabledInDocumentModeInternal();
-    }
-
-    /**
-     * Check whether tab switching is enabled in document mode.
-     * Note that this may return false if native library is not yet ready.
-     * @return Whether tab switching is enabled in document mode.
-     */
-    public static boolean isTabSwitchingEnabledInDocumentMode(Context context) {
-        return isDocumentMode(context) && isTabSwitchingEnabledInDocumentModeInternal();
-    }
-
-    private static boolean isTabSwitchingEnabledInDocumentModeInternal() {
-        return CommandLine.getInstance().hasSwitch(
-                ChromeSwitches.ENABLE_TAB_SWITCHER_IN_DOCUMENT_MODE);
-    }
-
     private static boolean isHerbDisallowed(Context context) {
         return isDocumentMode(context) || ChromeVersionInfo.isStableBuild()
                 || ChromeVersionInfo.isBetaBuild() || DeviceFormFactor.isTablet(context);