ArduCopter: remove non-functional FRSKY_TELEM_ENABLED define

ArduCopter/APM_Config.h

@@ -15,7 +15,6 @@
 //#define AC_OAPATHPLANNER_ENABLED DISABLED         // disable path planning around obstacles
 //#define PARACHUTE             DISABLED            // disable parachute release to save 1k of flash
 //#define NAV_GUIDED            DISABLED            // disable external navigation computer ability to control vehicle through MAV_CMD_NAV_GUIDED mission commands
-//#define FRSKY_TELEM_ENABLED   DISABLED            // disable FRSky telemetry
 //#define PRECISION_LANDING     DISABLED            // disable precision landing using companion computer or IRLock sensor
 //#define BEACON_ENABLED        DISABLED            // disable beacon support
 //#define SPRAYER_ENABLED       DISABLED            // disable the crop sprayer feature (two ESC controlled pumps the speed of which depends upon the vehicle's horizontal velocity)

ArduCopter/config.h

@@ -687,11 +687,6 @@
 // Developer Items
 //
 
-//use this to completely disable FRSKY TELEM
-#ifndef FRSKY_TELEM_ENABLED
-  #  define FRSKY_TELEM_ENABLED          ENABLED
-#endif
-
 #ifndef ADVANCED_FAILSAFE
 # define ADVANCED_FAILSAFE DISABLED
 #endif