Revert of Show IME when DPAD_CENTER is pressed (https://codereview.chromium.org/161933002/)

content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java

Index: content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
diff --git a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
index 1e2073022916117bbd87a6891718301a741791f9..4d45d99895305f80e61e5aa6b068ff2f1df7f371 100644
--- a/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
+++ b/content/public/android/java/src/org/chromium/content/browser/ContentViewCore.java
@@ -1689,17 +1689,6 @@ public class ContentViewCore
             return mContainerViewInternals.super_dispatchKeyEvent(event);
         }
 
-        if (event.getKeyCode() == KeyEvent.KEYCODE_DPAD_CENTER) {
-            showImeIfNeeded();
-            // Event is not consumed here, because ImeAdapter might interpret
-            // it as "Enter".
-            // showImeIfNeeded respects the policy of
-            // InputMethodService.onEvaluateInputViewShown. So IME will not be
-            // shown if you have QWERTY physical keyboard attached.
-            // Also, IME will not be shown if the focus is not on the input
-            // field. See ImeAdapter.attachAndShowIfNeeded
-        }
-
         if (mImeAdapter.dispatchKeyEvent(event)) return true;
 
         return mContainerViewInternals.super_dispatchKeyEvent(event);