CBLK_OVERRUN, not CBLK_UNDERRUN, is for record threads

Change-Id: I8948f76ef4717a423c37cd6ea7db4381636af612
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index f41cb22..d424e16 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -1659,9 +1659,6 @@
         recordThread->mLock.lock();
         bool doStop = recordThread->stop_l(this);
         if (doStop) {
-            // Force overrun condition to avoid false overrun callback until first data is
-            // read from buffer
-            android_atomic_or(CBLK_UNDERRUN, &mCblk->flags);
         }
         recordThread->mLock.unlock();
         if (doStop) {