Revert "- up to 3.12.0"

This reverts commit 8f9470634334d140ad49d29cc3a15877457eb510.
Revert "- up to 3.11.0"

This reverts commit 5752d4c634006c98f6fbdaae7dabdc0361a9c50a.
Revert "- up to 3.10.0"

This reverts commit c00c5a83588288cede61a0191eaf68aa2a349c2e.
Revert 2d087f10b500502e435b94492fabc622bef079f3.
- cgminer-gpu (last cgminer version that supports GPU mining)