Revert "NuPlayer: don't feed decoder input data during flushing."

The previous patch results in MediaBuffer leakage.

This reverts commit 69a85b792c31033a99c8858e3b1a3c2ea68b6278.

Bug: 14955925
Bug: 16303659
Bug: 16467066
Bug: 16849601
Change-Id: Ib1892b7603a97e12b7ee228fd5a4009700cdc988
1 file changed