Remove armv5te target

All the assembly code has been removed, the tests no longer check for
the target, and android and chrome do not use the targets.

Change-Id: I193993f7b2b0bd6478453402f573ce3606e04e8d
Drop special inter mode selection for screen content.

Better mode selection was implemented for all content.

Change-Id: I479778ed21d3968892f4dce396c83733583f4f23
Allow DC/H/V/TM on screen content.

6.3% better compression
less than 1% compression time increase

Change-Id: Ie83c059436e54c09de9e7c87e06e0a6d40dc38fe
Merge "Remove armv5te target"
Merge "Drop special inter mode selection for screen content."
Merge "Allow DC/H/V/TM on screen content."