Revert "aacenc: fix timestamp off by one frame"

This reverts commit 10ceef9f3b96e5c7bc783432fe569333a2405cf0.

Reason for revert: This isn't wanted in qt-dev. It is in qt-r1-dev and will be delivered in the December Mainline train.

Bug: 137245963
Change-Id: I0a5a4991786d6dcbd324663a6d342729166a5528
Merged-In: I567890f3d04544c12adfe29a6a23c06f1db699e7
diff --git a/media/codec2/components/aac/C2SoftAacEnc.h b/media/codec2/components/aac/C2SoftAacEnc.h
index 2655039..a38be19 100644
--- a/media/codec2/components/aac/C2SoftAacEnc.h
+++ b/media/codec2/components/aac/C2SoftAacEnc.h
@@ -56,7 +56,7 @@
     bool mSentCodecSpecificData;
     bool mInputTimeSet;
     size_t mInputSize;
-    c2_cntr64_t mNextFrameTimestampUs;
+    c2_cntr64_t mInputTimeUs;
 
     bool mSignalledError;
     std::atomic_uint64_t mOutIndex;