Revert "GPU OC: add ifdef for gpu clock init levels. This fixes gpu fail when CONFIG_GPU_OVERCLOCK is not set"

This reverts commit 6ec589a91ec57fa4b34a434cb1aa9a0625eae55d.
Revert "GPU OC: more clean up work"

This reverts commit ba11ba1e3be33205ec365f4ac10bb2f985a86327.
Revert "GPU OC: clean up"

This reverts commit 92c71ec90bccc40c725123d17aa7cd9d8c857d51.
remove gpu overclock for now