Blimp: move error logging of sensor health into AP_Baro

Blimp/Blimp.cpp

@@ -278,7 +278,6 @@ Blimp::Blimp(void)
       flightmode(&mode_manual)
 {
     // init sensor error logging flags
-    sensor_health.baro = true;
     sensor_health.compass = true;
 }
 

Blimp/Blimp.h

@@ -189,7 +189,6 @@ private:
 
     // sensor health for logging
     struct {
-        uint8_t baro        : 1;    // true if baro is healthy
         uint8_t compass     : 1;    // true if compass is healthy
     } sensor_health;
 

Blimp/Log.cpp

@@ -232,20 +232,13 @@ tuning_max     : tune_max
     logger.WriteBlock(&pkt_tune, sizeof(pkt_tune));
 }
 
-// logs when baro or compass becomes unhealthy
+// logs when compass becomes unhealthy
 void Blimp::Log_Sensor_Health()
 {
     if (!should_log(MASK_LOG_ANY)) {
         return;
     }
 
-    // check baro
-    if (sensor_health.baro != barometer.healthy()) {
-        sensor_health.baro = barometer.healthy();
-        AP::logger().Write_Error(LogErrorSubsystem::BARO,
-                                 (sensor_health.baro ? LogErrorCode::ERROR_RESOLVED : LogErrorCode::UNHEALTHY));
-    }
-
     // check compass
     if (sensor_health.compass != compass.healthy()) {
         sensor_health.compass = compass.healthy();