[fix] remove rfkill switch support (#174)

The previous fix(0af3d0d) of disabling rfkill-input does not work anymore, this results in the wifi device turning off when starting swhkd.

swhkd/src/uinput.rs

@@ -3,12 +3,6 @@ use evdev::{
     AttributeSet, Key, RelativeAxisType, SwitchType,
 };
 
-use nix::ioctl_none;
-use std::fs::File;
-use std::os::unix::io::AsRawFd;
-
-ioctl_none!(rfkill_noinput, b'R', 1);
-
 pub fn create_uinput_device() -> Result<VirtualDevice, Box<dyn std::error::Error>> {
     let keys: AttributeSet<Key> = get_all_keys().iter().copied().collect();
 
@@ -26,20 +20,6 @@ pub fn create_uinput_device() -> Result<VirtualDevice, Box<dyn std::error::Error
 pub fn create_uinput_switches_device() -> Result<VirtualDevice, Box<dyn std::error::Error>> {
     let switches: AttributeSet<SwitchType> = get_all_switches().iter().copied().collect();
 
-    // We have to disable rfkill-input to avoid blocking all radio devices. When
-    // a new device (virtual or physical) with the SW_RFKILL_ALL capability bit
-    // set appears, rfkill reacts immediately depending on the value bit. This
-    // value bit defaults to unset, which causes rfkill to use its default mode
-    // (which is eop - emergency power off). The uinput API does not give any
-    // way to set the corresponding value bit before creating the device, and we
-    // have no way to avoid rfkill acting upon the device creation or to change
-    // its default mode. Thus, we disable rfkill-input temporarily, hopefully
-    // fast enough that it won't impact anyone. rfkill-input will be enabled
-    // again when the file gets closed.
-    let rfkill_file = File::open("/dev/rfkill")?;
-    unsafe {
-        rfkill_noinput(rfkill_file.as_raw_fd())?;
-    }
     let device = VirtualDeviceBuilder::new()?
         .name("swhkd switches virtual output")
         .with_switches(&switches)?
@@ -622,7 +602,6 @@ pub fn get_all_switches() -> &'static [SwitchType] {
         SwitchType::SW_LID,
         SwitchType::SW_TABLET_MODE,
         SwitchType::SW_HEADPHONE_INSERT,
-        SwitchType::SW_RFKILL_ALL,
         SwitchType::SW_MICROPHONE_INSERT,
         SwitchType::SW_DOCK,
         SwitchType::SW_LINEOUT_INSERT,