Revert "little tweak"

This reverts commit 50e702e519fcd13e00ab38b2838ccde93189007e.
Revert "msm: kgsl: Idle the core before changing the gpu clock."

This reverts commit 2a1e22323a26be9fe99fd2733e8b3d0ca31c78a6.
Revert "increase timeout to 5s"

This reverts commit ad3a924ea3f758a63a0f2072b38cfed9e95c88c5.
Revert "update battery config"

This reverts commit 03bf406cd4407f1e9d134c1f3964a5e92a28a5b3.
Revert "update touchscreen power"

This reverts commit c69dfc20aa1b813d792dbd90ad707437e7def1da.
Revert "writeback: Fix periodic writeback after fs mount"

This reverts commit 8e7dfd50f0696c86fee21ca673ea3e2c4231cded.
Revert "cpufreq: Manage only online cpus"

This reverts commit 39b955b9eeafb384795c1268be87ae8567b1c907.
Revert "set backlight to 0 if backlight switch is off"

This reverts commit dbdc6a9431632525129fe357deb1ca73d203fbc8.
Revert "random: entropy tweaks are all the rage nowadays"

This reverts commit dcc08754fbce4cf350d09b52166ef27b375b7876.
Revert "procfs: add num_to_str() to speed up /proc/stat"

This reverts commit 0fb26108ded5458eaf3bbd694b14072627536c73.
Revert "enable zcache and zsmalloc"

This reverts commit d2968af394c95f6c027d52cce70ca4c6f8b870bc.
Revert "enable zcache by default"

This reverts commit b59b6cea2040367aef31ab00544e5d99f743ba1c.
Revert "staging: zram: show correct disksize"

This reverts commit 93229162e98737c67262ad62ce191a0491ec4dbe.