delete unused SENSORIOCGQUEUEDEPTH

src/platforms/posix/drivers/accelsim/accelsim.cpp

@@ -564,9 +564,6 @@ ACCELSIM::devIOCTL(unsigned long cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case SENSORIOCRESET:
 		// Nothing to do for simulator
 		return OK;
@@ -687,9 +684,6 @@ ACCELSIM::mag_ioctl(unsigned long cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _mag_reports->size();
-
 	case SENSORIOCRESET:
 		// Nothing to do for simulator
 		return OK;

src/platforms/posix/drivers/airspeedsim/airspeedsim.cpp

@@ -259,9 +259,6 @@ AirspeedSim::ioctl(device::file_t *filp, int cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _reports->size();
-
 	case SENSORIOCRESET:
 		/* XXX implement this */
 		return -EINVAL;

src/platforms/posix/drivers/gyrosim/gyrosim.cpp

@@ -786,9 +786,6 @@ GYROSIM::devIOCTL(unsigned long cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _accel_reports->size();
-
 	case ACCELIOCGSAMPLERATE:
 		return 1e6 / m_sample_interval_usecs;
 
@@ -854,9 +851,6 @@ GYROSIM::gyro_ioctl(unsigned long cmd, unsigned long arg)
 			return OK;
 		}
 
-	case SENSORIOCGQUEUEDEPTH:
-		return _gyro_reports->size();
-
 	case GYROIOCGSAMPLERATE:
 		return 1e6 / m_sample_interval_usecs;