stagefright: allow scenarios when dequeueBufferFromNativeWindow fails

We can run out of native buffers when the bufferqueue is abandoned.

Bug: 16839124
Change-Id: If605f692b87082f1630e1da0fd44da0cb76133f5
diff --git a/media/libstagefright/ACodec.cpp b/media/libstagefright/ACodec.cpp
index ac80da2..b77e1cd 100644
--- a/media/libstagefright/ACodec.cpp
+++ b/media/libstagefright/ACodec.cpp
@@ -3946,8 +3946,7 @@
                             (outputMode == FREE_BUFFERS ? "FREE" :
                              outputMode == KEEP_BUFFERS ? "KEEP" : "RESUBMIT"));
                     if (outputMode == RESUBMIT_BUFFERS) {
-                        CHECK_EQ(mCodec->submitOutputMetaDataBuffer(),
-                                (status_t)OK);
+                        mCodec->submitOutputMetaDataBuffer();
                     }
                 }