Revert "mako_ak_defconfig: Added GPU_OVERCLOCK_450"

This reverts commit 498eac76109b29a1892af03073080d9d35cc9212.
Revert "GPU Overclocking: add 450 MHz option"

This reverts commit 4daf1f8960f169c8ad811bcf2cf593c89f4a7d51.
Revert "GPU Overclock: GPU overclocking to 487.5 MHz"

This reverts commit 9dfc8c32ed248305eb718bb05323ef880f68a0a4.
Kernel Version: AK.201.JS - Stock GPU Thanks Alen1901