Revert "OVERCLOCKING: intial Galaxy S5 overclocking to 2.8 GHz"

This reverts commit 208ff7de19e0a776b03f98fede9ec8064501bbf8.
Revert "cpufreq_limit: updated default cpu freq to new OC table"

This reverts commit dc5c858dc1ee6ef8387808ac32c92ca157ee6b0a.