delete module's redundant print_status()

- we can already get the running status from ModuleBase and the other misc information is already available through perf or uORB

src/drivers/safety_button/SafetyButton.hpp

@@ -62,9 +62,6 @@ public:
 	/** @see ModuleBase */
 	static int print_usage(const char *reason = nullptr);
 
-	/** @see ModuleBase::print_status() */
-	int print_status() override;
-
 	void Run() override;
 
 	int Start();