Revert "decodebin2: fix deadlock on chain shutdown"
This reverts commit 77dc09c3. It can cause the FLUSH_START/STOP events to go to the sink elements, which then causes state changes and various other problems. We shouldn't really flush downstream here, the idea is to do *draining*. Apart from that the testcase for the original bug here works without this commit now.
Showing with 2 additions and 4 deletions