libcamera: Remove void specifier for functions that take no arguments

In C++, unlike in C, a function that takes no argument doesn't need to
specify void in the arguments list. Drop the unnecessary specifiers.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

src/android/camera3_hal.cpp

@@ -22,7 +22,7 @@ static CameraHalManager cameraManager;
  * Android Camera HAL callbacks
  */
 
-static int hal_get_number_of_cameras(void)
+static int hal_get_number_of_cameras()
 {
 	return cameraManager.numCameras();
 }