Revert "Fix possible integer overflow in MtpStorage"

This reverts commit c46b90c6e67f6184655b33e150d25f2c1f79f6e5.
Revert "Fix incorrect fragment animation used for hiding fragments"

This reverts commit 7604e4a71a8495ce915776ae8cea5a67f5ed098a.
Revert "Adjust kernel data stack TCP parameters to optimize performance"

This reverts commit f738aaa247f46251f06e038530b56dc7832fa48e.
Revert "tune up boot animation"

This reverts commit 07166899a4a5819c7e0f7689144ff09fb7330d4d.
Revert "Fix deadlock of WebViewCoreThread"

This reverts commit 946aa4add7c9533dda3079f29ea7d621b28a0328.
Revert "Fix graphical artifact in the fisheye effect"

This reverts commit e3a583751097726cb19a9ab8f2dc323ba6a765ad.
Revert "Applying ChannelScrolling to remove calculateDragAngle"

This reverts commit 8b999697399f664944fc25f53060df5ab8b2a915.
Revert "KeyChain: return null instead of throw"

This reverts commit 9fce93e944c2a2d60aa7a44cefe518f78ac244fe.
Revert "Derp!"

This reverts commit 671a26d4dd94906a9fac6cd073335584272ac387.
Revert "remove some lag launching apps and improve scrolling"

This reverts commit 85c2a6d4eb27378548b243afdfad108f12a37d77.
Revert "Properly rotate full [-pi, +pi] orientation range if available"

This reverts commit fcf420fabc9ff42eee4365c3d5bfde952e077e22.
Revert "fix NoSuchElementException error with CPU ProcessStats"

This reverts commit ca560ec0f229ed9c4a2dede6e0327d362b226329.
Revert " Fixed SystemUI crash when disable GPU acceleration"

This reverts commit 269065eb4cbfdb83007133e831afa1ea8477353e.