Remove mistake

Change-Id: I3ae14d12047ae253144e866f67b3deff87d2d78b

Author: samtstern

auth/src/main/java/com/firebase/ui/auth/viewmodel/ResourceObserver.java

@@ -4,7 +4,6 @@
 import android.support.annotation.NonNull;
 import android.support.annotation.RestrictTo;
 import android.support.annotation.StringRes;
-import android.util.Log;
 
 import com.firebase.ui.auth.data.model.Resource;
 import com.firebase.ui.auth.data.model.State;
@@ -35,7 +34,6 @@ private ResourceObserver(HelperActivityBase activity, FragmentBase fragment, int
     @Override
     public final void onChanged(Resource<T> resource) {
         if (resource.getState() == State.LOADING) {
-            Log.d("DIALOG", "Shown by: " + resource.toString());
             mActivity.getDialogHolder().showLoadingDialog(mLoadingMessage);
             return;
         }