Remove setup of 'input' group from Linux packaging scripts

packaging/linux/AppImage/AppRun

@@ -45,7 +45,6 @@ echo "
 
 function install() {
   # user input rules
-  sudo usermod -a -G input $USER
   # shellcheck disable=SC2002
   cat "$SUNSHINE_SHARE_HERE/udev/rules.d/85-sunshine.rules" | sudo tee /etc/udev/85-sunshine.rules
 

packaging/linux/flatpak/scripts/additional-install.sh

@@ -6,8 +6,8 @@ cp /app/share/sunshine/systemd/user/sunshine.service $HOME/.config/systemd/user/
 echo Sunshine User Service has been installed.
 echo Use [systemctl --user enable sunshine] once to autostart Sunshine on login.
 
-# Udev rule and input group
+# Udev rule
 UDEV=$(cat /app/share/sunshine/udev/rules.d/85-sunshine.rules)
 echo Configuring mouse permission.
-flatpak-spawn --host pkexec sh -c "usermod -a -G input $USER && echo '$UDEV' > /etc/udev/rules.d/85-sunshine.rules"
+flatpak-spawn --host pkexec sh -c "echo '$UDEV' > /etc/udev/rules.d/85-sunshine.rules"
 echo Restart computer for mouse permission to take effect.

packaging/linux/flatpak/scripts/remove-additional-install.sh

@@ -6,6 +6,6 @@ rm $HOME/.config/systemd/user/sunshine.service
 systemctl --user daemon-reload
 echo Sunshine User Service has been removed.
 
-# Udev rule and input group
-flatpak-spawn --host pkexec sh -c "gpasswd -d $USER input && rm /etc/udev/rules.d/85-sunshine.rules"
+# Udev rule
+flatpak-spawn --host pkexec sh -c "rm /etc/udev/rules.d/85-sunshine.rules"
 echo Mouse permission removed. Restart computer to take effect.