AP_MotorsMatrix: remove unnecessary virtual declarations

libraries/AP_Motors/AP_MotorsMatrix.h

@@ -22,28 +22,28 @@ public:
     {};
 
     // init
-    virtual void        Init();
+    void                Init();
 
     // set update rate to motors - a value in hertz
     // you must have setup_motors before calling this
-    virtual void        set_update_rate( uint16_t speed_hz );
+    void                set_update_rate(uint16_t speed_hz);
 
     // set frame orientation (normally + or X)
-    virtual void        set_frame_orientation( uint8_t new_orientation );
+    void                set_frame_orientation(uint8_t new_orientation);
 
     // enable - starts allowing signals to be sent to motors
-    virtual void        enable();
+    void                enable();
 
     // output_test - spin a motor at the pwm value specified
     //  motor_seq is the motor's sequence number from 1 to the number of motors on the frame
     //  pwm value is an actual pwm value that will be output, normally in the range of 1000 ~ 2000
-    virtual void        output_test(uint8_t motor_seq, int16_t pwm);
+    void                output_test(uint8_t motor_seq, int16_t pwm);
 
     // output_min - sends minimum values out to the motors
-    virtual void        output_min();
+    void                output_min();
 
     // output_to_motors - sends minimum values out to the motors
-    virtual void        output_to_motors();
+    void                output_to_motors();
 
     // add_motor using just position and yaw_factor (or prop direction)
     void                add_motor(int8_t motor_num, float angle_degrees, float yaw_factor, uint8_t testing_order);
@@ -58,13 +58,11 @@ public:
     void                remove_all_motors();
 
     // setup_motors - configures the motors for a given frame type - should be overwritten by child classes
-    virtual void        setup_motors() {
-        remove_all_motors();
-    };
+    virtual void        setup_motors() { remove_all_motors(); };
 
     // get_motor_mask - returns a bitmask of which outputs are being used for motors (1 means being used)
     //  this can be used to ensure other pwm outputs (i.e. for servos) do not conflict
-    virtual uint16_t    get_motor_mask();
+    uint16_t            get_motor_mask();
 
 protected:
     // output - sends commands to the motors