remove @unit enum

src/drivers/camera_trigger/camera_trigger_params.c

@@ -58,7 +58,6 @@ PARAM_DEFINE_FLOAT(TRIG_INTERVAL, 40.0f);
  *
  * This parameter sets the polarity of the trigger (0 = ACTIVE_LOW, 1 = ACTIVE_HIGH )
  *
- * @unit enum
  * @value 0 ACTIVE_LOW
  * @value 1 ACTIVE_HIGH
  * @min 0
@@ -82,7 +81,6 @@ PARAM_DEFINE_FLOAT(TRIG_ACT_TIME, 0.5f);
  *
  * 0 disables the trigger, 1 sets it to enabled on command, 2 always on, 3 distance based, 4 distance based enabled on command
  *
- * @unit enum
  * @value 0 disable
  * @value 1 cmd
  * @value 2 always

src/drivers/gimbal/gimbal_params.c

@@ -63,7 +63,6 @@ PARAM_DEFINE_INT32(GMB_USE_MNT, 0);
  * Switch on means the gimbal can move freely, and landing gear
  * will be retracted if applicable.
  *
- * @unit enum
  * @value 0 disable
  * @value 1 aux1
  * @value 2 aux2

src/drivers/mkblctrl/mkblctrl_params.c

@@ -46,7 +46,6 @@
 /**
  * Enables testmode (Identify) of MKBLCTRL Driver
  *
- * @unit enum
  * @value 0 Disabled
  * @value 1 Enabled
  * @min 0