Revert "kgsl: merge changes added on flo to make the alrgorithm a bit smarter."

This reverts commit 84d4fa5b0be9f45412f71d09626253d4e842fba8.
Revert "kgsl: add back content to the sleep function for this tz routine. Also fix the length of the governor name for the sysfs entry."

This reverts commit e5ec4dd76f9a2a341bf92b768131d0ec6e3c6be9.
Revert "kgsl: add a new governor algorithm. Ditch the older Simple Governor to make place for Interactive. This name is chosen just to differentiate from the others, but it doesn't behave like the CPU governor Interactive. This uses a completely different algorithm to decide when to increase or decrease the GPU frequency. Also the functions tz_wake and tz_sleep don't do anything, they were a bit useless at this point after some testing."

This reverts commit c532da288aa12e5905134dd63c4c6c3e059aef90.
Revert "KGSL: update simple gpu governor"

This reverts commit 6ea4c2e5bde57c7e072f678dcc9421305b961d74.
Revert "KGSL: Simple Governor: so I kinda butchered in a good way of course the original code from faux, but the simplicity is still here. Added an history so that we can track the average do that the frequency scaling is much more proporcional to the actual GPU load rather than having is ramp up every now and then due to spurious load spike. Also remove two useless ifs."

This reverts commit a2cffeb0c92811cee58c211269d36a8996bbd899.
Revert "KGSL: Simple Governor: some styling changes, early returns instead of assigning a val and returning in the end of the function call and change the copyright/author from the middle of the file to the header."

This reverts commit 0d5f70b51555ea6bc0d3803046caeab02b7cd19f.
Revert "kgsl: simple gpu governor"

This reverts commit 9802a844d5c17f74a2daef3ca34a33712ff8fccd.