Revert of [Android] Add gyp support for multidex.

base/android/java/src/org/chromium/base/BaseChromiumApplication.java

Index: base/android/java/src/org/chromium/base/BaseChromiumApplication.java
diff --git a/base/android/java/src/org/chromium/base/BaseChromiumApplication.java b/base/android/java/src/org/chromium/base/BaseChromiumApplication.java
index 6d73c8fe63803f1b61821a8ba01fda9185f601b3..d7c7b05ea58d88808aef44d10e798448e74ec0ca 100644
--- a/base/android/java/src/org/chromium/base/BaseChromiumApplication.java
+++ b/base/android/java/src/org/chromium/base/BaseChromiumApplication.java
@@ -11,8 +11,6 @@
 import android.view.KeyEvent;
 import android.view.Window;
 
-import org.chromium.base.multidex.ChromiumMultiDex;
-
 import java.lang.reflect.InvocationHandler;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
@@ -22,15 +20,6 @@
  * Basic application functionality that should be shared among all browser applications.
  */
 public class BaseChromiumApplication extends Application {
-
-    private static final String TAG = "cr.base";
-
-    @Override
-    protected void attachBaseContext(Context base) {
-        super.attachBaseContext(base);
-        ChromiumMultiDex.install(this);
-    }
-
     /**
      * Interface to be implemented by listeners for window focus events.
      */