buoy: Remove unused vars and functions.
buoy: Remove unused vars and functions.

UKHASnet/UKHASnet_Firmware,sburggsx/UKHASnet_Firmware,UKHASnet/UKHASnet_Firmware,sburggsx/UKHASnet_Firmware,dbrooke/UKHASnet_Firmware,dbrooke/UKHASnet_Firmware