AP_HAL: remove HIL support

libraries/AP_HAL/AP_HAL_Boards.h

@@ -62,7 +62,7 @@
 #define HAL_INS_NONE         0
 #define HAL_INS_MPU60XX_SPI  2
 #define HAL_INS_MPU60XX_I2C  3
-#define HAL_INS_HIL          4
+#define HAL_INS_HIL_UNUSED   4  // unused
 #define HAL_INS_VRBRAIN      8
 #define HAL_INS_MPU9250_SPI  9
 #define HAL_INS_MPU9250_I2C 13
@@ -73,14 +73,14 @@
 
 /* Barometer driver types */
 #define HAL_BARO_NONE        0
-#define HAL_BARO_HIL         6
+#define HAL_BARO_HIL_UNUSED  6  // unused
 #define HAL_BARO_20789_I2C_I2C  14
 #define HAL_BARO_20789_I2C_SPI  15
 #define HAL_BARO_LPS25H_IMU_I2C 17
 
 /* Compass driver types */
 #define HAL_COMPASS_NONE                0
-#define HAL_COMPASS_HIL                 3
+#define HAL_COMPASS_HIL_UNUSED          3  // unused
 
 /* Heat Types */
 #define HAL_LINUX_HEAT_PWM 1

libraries/AP_HAL/board/empty.h

@@ -5,9 +5,9 @@
 #define HAL_MEM_CLASS HAL_MEM_CLASS_192
 #define HAL_STORAGE_SIZE            16384
 #define HAL_STORAGE_SIZE_AVAILABLE  HAL_STORAGE_SIZE
-#define HAL_INS_DEFAULT HAL_INS_HIL
-#define HAL_BARO_DEFAULT HAL_BARO_HIL
-#define HAL_COMPASS_DEFAULT HAL_COMPASS_HIL
+#define HAL_INS_DEFAULT HAL_INS_NONE
+#define HAL_BARO_DEFAULT HAL_BARO_NONE
+#define HAL_COMPASS_DEFAULT HAL_COMPASS_NONE
 #define CONFIG_HAL_BOARD_SUBTYPE HAL_BOARD_SUBTYPE_NONE
 
 #define HAL_HAVE_BOARD_VOLTAGE 1

libraries/AP_HAL/board/linux.h

@@ -27,9 +27,9 @@
     #define HAL_BOARD_LOG_DIRECTORY "logs"
     #define HAL_BOARD_TERRAIN_DIRECTORY "terrain"
     #define HAL_BOARD_STORAGE_DIRECTORY "."
-    #define HAL_INS_DEFAULT HAL_INS_HIL
-    #define HAL_BARO_DEFAULT HAL_BARO_HIL
-    #define HAL_COMPASS_DEFAULT HAL_COMPASS_HIL
+    #define HAL_INS_DEFAULT HAL_INS_NONE
+    #define HAL_BARO_DEFAULT HAL_BARO_NONE
+    #define HAL_COMPASS_DEFAULT HAL_COMPASS_NONE
 #elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_PXF || CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_ERLEBOARD
     #if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_PXF
       #define HAL_INS_PROBE_LIST PROBE_IMU_SPI(Invensense, "mpu9250", ROTATION_ROLL_180_YAW_270)
@@ -157,9 +157,9 @@
     #define HAL_GPIO_LED_OFF          1
 #elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_ZYNQ
     // Stub the sensors out for now, at least we can build and run
-    #define HAL_INS_DEFAULT HAL_INS_HIL
-    #define HAL_BARO_DEFAULT HAL_BARO_HIL
-    #define HAL_COMPASS_DEFAULT HAL_COMPASS_HIL
+    #define HAL_INS_DEFAULT HAL_INS_NONE
+    #define HAL_BARO_DEFAULT HAL_BARO_NONE
+    #define HAL_COMPASS_DEFAULT HAL_COMPASS_NONE
     // only external compasses
     #define HAL_PROBE_EXTERNAL_I2C_COMPASSES
     #define HAL_COMPASS_DEFAULT HAL_COMPASS_NONE

libraries/AP_HAL/board/sitl.h

@@ -43,9 +43,9 @@
 #define HAL_BOARD_LOG_DIRECTORY "logs"
 #define HAL_BOARD_TERRAIN_DIRECTORY "terrain"
 #define HAL_PARAM_DEFAULTS_PATH nullptr
-#define HAL_INS_DEFAULT HAL_INS_HIL
-#define HAL_BARO_DEFAULT HAL_BARO_HIL
-#define HAL_COMPASS_DEFAULT HAL_COMPASS_HIL
+#define HAL_INS_DEFAULT HAL_INS_NONE
+#define HAL_BARO_DEFAULT HAL_BARO_NONE
+#define HAL_COMPASS_DEFAULT HAL_COMPASS_NONE
 #define HAL_GPIO_A_LED_PIN        61
 #define HAL_GPIO_B_LED_PIN        48
 #define HAL_GPIO_C_LED_PIN        117