fixup: fix memory leak

src/RageInput.cpp

@@ -68,6 +68,8 @@ void RageInput::LoadDrivers()
 
 #if LINUX
 	// Recreating this forces it to re-scan for devices.
+	if( LINUXINPUT != nullptr )
+		delete LINUXINPUT;
 	LINUXINPUT = new LinuxInputManager;
 #endif
 

src/arch/InputHandler/LinuxInputManager.cpp

@@ -91,6 +91,9 @@ LinuxInputManager::LinuxInputManager()
 	closedir(sysClassInput);
 }
 
+LinuxInputManager::~LinuxInputManager()
+{
+}
 
 static bool presort_cmpDevices(LinuxInputSort a, LinuxInputSort b)
 {