Revert "Now back to 30fps, suspend updates if surface flinger didn't send us"

This reverts commit 4a8b9a2363b7b7b4f98022e6d9aae8b8aa8e35e5.

Conflicts:
	media/libstagefright/wifi-display/source/Converter.cpp

Change-Id: I68bb5bc35025fb2a9478edf7e526a2aae0dac677
Revert "Increase converter polling interval."

This reverts commit 21daec5798f7e13c5ab6b513d27b3f79d4779bca.
Revert "Take advantage of the hardware encoder's ability to prepend SPS/PPS"

This reverts commit c6920dfdca378a168a2168f4a64d21af4d37d539.
Revert "Use incremental updates sent by surface flinger"

This reverts commit ee178668818eb4f43ff40735405f8fc42372620f.
Revert "ALooper::GetNowUs() now relies on systemTime instead of gettimeofday."

This reverts commit af5dd7753e62353411cf0daf3b513c38818e9662.

Change-Id: I893d87b76525a015a93fc54518f29e6167ff7e1a
Revert "Perform an orderly shutdown if possible, force disconnect if necessary"

This reverts commit ad0d97c7cf620e96a0b088dd9461645a3f8900b7.
Revert "Make sure we still handle shutdown-related message even if we're"

This reverts commit 6360758ce2d171169d2a21e30266547ee4ac0fec.