Sub: Remove unused InputManager library dependency

ArduSub/Sub.h

@@ -76,7 +76,6 @@
 #include <AP_BattMonitor/AP_BattMonitor.h>     // Battery monitor library
 #include <AP_BoardConfig/AP_BoardConfig.h>     // board configuration library
 #include <AP_Terrain/AP_Terrain.h>
-#include <AC_InputManager/AC_InputManager.h>        // Pilot input handling library
 #include <AP_JSButton/AP_JSButton.h>   // Joystick/gamepad button function assignment
 #include <AP_LeakDetector/AP_LeakDetector.h> // Leak detector
 #include <AP_TemperatureSensor/TSYS01.h>

ArduSub/make.inc

@@ -49,7 +49,6 @@ LIBRARIES += AP_BoardConfig
 LIBRARIES += AP_Frsky_Telem
 LIBRARIES += AP_Terrain
 LIBRARIES += AP_RPM
-LIBRARIES += AC_InputManager
 LIBRARIES += AP_JSButton
 LIBRARIES += AP_LeakDetector
 LIBRARIES += AP_Gripper

ArduSub/wscript

@@ -8,7 +8,6 @@ def build(bld):
         ap_vehicle=vehicle,
         ap_libraries=bld.ap_common_vehicle_libraries() + [
             'AC_AttitudeControl',
-            'AC_InputManager',
             'AC_Fence',
             'AC_Avoidance',
             'AC_PID',