Revert "Harden construction sites of android::StrongPointer."

This reverts commit 81793808b9347a52dd979e4b3d5d9d10fc8c4915.

Reason for revert: Droidmonitor created revert due to b/397788382. Will be verifying through ABTD before submission.

Change-Id: Idd58b82a5a5380053cdff4e7b92eafa66b2c2782
diff --git a/libs/gui/DisplayEventDispatcher.cpp b/libs/gui/DisplayEventDispatcher.cpp
index 67ca39c..68f10f4 100644
--- a/libs/gui/DisplayEventDispatcher.cpp
+++ b/libs/gui/DisplayEventDispatcher.cpp
@@ -59,8 +59,7 @@
     }
 
     if (mLooper != nullptr) {
-        int rc = mLooper->addFd(mReceiver.getFd(), 0, Looper::EVENT_INPUT,
-                                sp<LooperCallback>::fromExisting(this), NULL);
+        int rc = mLooper->addFd(mReceiver.getFd(), 0, Looper::EVENT_INPUT, this, NULL);
         if (rc < 0) {
             return UNKNOWN_ERROR;
         }