Revert "Arducopter: Tradheli:"

This reverts commit 71dfe5713ce47840db4d61944bfc0e7994ffb3e1.
Revert "Arducopter: TradHeli"

This reverts commit 90a1d11830a4da85d5eefb7ea9ad0a4ffda15595.
Revert "Arducopter: Tradheli changes to Alt_Hold controllers."

This reverts commit efcc6a7fdb1664f42413521d84f684f7df310f55.