Removed a CHECK_EQ that is not needed.

'what' was just compared against Renderer::kWhatFlushComplete before entering the
if block.

Change-Id: I72c5c156f814621a24439d89e150c4e0d90edcbb
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
index daf60f6..3a976eb 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
@@ -497,8 +497,6 @@
                     }
                 }
             } else if (what == Renderer::kWhatFlushComplete) {
-                CHECK_EQ(what, (int32_t)Renderer::kWhatFlushComplete);
-
                 int32_t audio;
                 CHECK(msg->findInt32("audio", &audio));