Revert "[Custom Tabs] Implement "Read It Later" Behind a Flag"

chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
index b85a1083107d863bbc73db2b2e324928a06b62ab..1dad91490f8f9a7ef446a422a1c4ee25131e2d72 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/Tab.java
@@ -1519,12 +1519,11 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
      * @param startActivityOptions Options to pass to {@link Activity#startActivity(Intent, Bundle)}
      * @param finalizeCallback A callback that will be called after the tab is attached to the new
      *                         host activity in {@link #attachAndFinishReparenting}.
-     * @param stayInChrome Whether the user should stay in Chrome after the tab is reparented.
      * @return Whether reparenting succeeded. If false, the tab was not removed and the intent was
      *         not fired.
      */
     public boolean detachAndStartReparenting(Intent intent, Bundle startActivityOptions,
-            Runnable finalizeCallback, boolean stayInChrome) {
+            Runnable finalizeCallback) {
         ChromeActivity activity = getActivity();
         if (activity == null) return false;
 
@@ -1546,7 +1545,7 @@ public class Tab implements ViewGroup.OnHierarchyChangeListener,
             // ensure the global count of tabs is correct. See crbug.com/611806.
             intent.putExtra(IntentHandler.EXTRA_TAB_ID, mId);
             AsyncTabParamsManager.add(mId,
-                    new TabReparentingParams(this, intent, finalizeCallback, stayInChrome));
+                    new TabReparentingParams(this, intent, finalizeCallback));
 
             tabModelSelector.getModel(mIncognito).removeTab(this);