HID: rmi: remove #ifdef CONFIG_PM

Through the usage of pm_ptr() the CONFIG_PM-dependent code will always be
compiled, protecting against bitrot.
The linker will then garbage-collect the unused function avoiding any overhead.

Signed-off-by: Thomas Weißschuh <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Benjamin Tissoires <[e-mail]>

drivers/hid/hid-rmi.c

···
 		input_sync(field->hidinput->input);
 }
 
-#ifdef CONFIG_PM
 static int rmi_suspend(struct hid_device *hdev, pm_message_t message)
 {
 	struct rmi_data *data = hid_get_drvdata(hdev);
···
 	hid_hw_close(hdev);
 	return ret;
 }
-#endif /* CONFIG_PM */
 
 static int rmi_hid_reset(struct rmi_transport_dev *xport, u16 reset_addr)
 {
···
 	.report			= rmi_report,
 	.input_mapping		= rmi_input_mapping,
 	.input_configured	= rmi_input_configured,
-#ifdef CONFIG_PM
-	.suspend		= rmi_suspend,
-	.resume			= rmi_post_resume,
-	.reset_resume		= rmi_post_resume,
-#endif
+	.suspend		= pm_ptr(rmi_suspend),
+	.resume			= pm_ptr(rmi_post_resume),
+	.reset_resume		= pm_ptr(rmi_post_resume),
 };
 
 module_hid_driver(rmi_driver);