Revert "configs: enable gpu overclock"

This reverts commit b8de7400086fc8521ce86257523abe3a73f5c99d.
Revert "GPU Overclock: fix missing PORT1 settings for Adren320 (dual ports)"

This reverts commit 85c35ea9907c8305b635450d58f1a1d1240bf5e7.
Revert "GPU Overclock: Initial 8064 GPU Overclock to 487 MHz"

This reverts commit ab75ec44c341be468a2e5a59990147db74e8ed66.