Revert "kgsl_pwrscale_conservative.c : adjust polling_intervall"

This reverts commit f20fafccac096f098240014ca1c643479d8aa812.
Revert "adreno.c: make kgsl_pwrscale_conservative default"

This reverts commit 764c07bcd03c91c881f197363aab5ec9f1c8f872.
Revert "kgsl_pwrscale_conservative.c : adjust polling_intervall"

This reverts commit a9678a55e2d1556a9f1ed418d6b89c7fe7bf9ffa.
Revert "kgsl: Implement conservative scaling policy"

This reverts commit fcee613dc905f4ce9f541ddce41b7ae723bcc17f.
Revert "kgsl_pwrscale: Rework policy sysfs implementation"

This reverts commit 615bcec5c88ab50502ad9e714c68b6c010006857.