libcamera: bound_method: Fix compiler warning due to unused arguments

The BoundStaticMethod::invoke() method is never used, but must still be
implemented as the base class defines it as pure virtual. As it doesn't
use its arguments, the compiler generates a warning. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

include/libcamera/bound_method.h

@@ -119,7 +119,7 @@ public:
 	bool match(void (*func)(Args...)) const { return func == func_; }
 
 	void activate(Args... args) { (*func_)(args...); }
-	void invoke(Args... args) {}
+	void invoke(Args...) {}
 
 private:
 	void (*func_)(Args...);