chore: remove obsolete hypridle.conf, now replaced by device-specific fragments

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Co-Authored-By: opencode <noreply@opencode.ai>

.config/hypr/hypridle.conf

@@ -1,14 +0,0 @@
-general {
-  lock_cmd = pidof hyprlock || hyprlock
-  before_sleep_cmd = loginctl lock-session
-  after_sleep_cmd = hyprctl dispatch dpms on
-}
-
-listener {
-  timeout = 300
-  on-timeout = pidof hyprlock || hyprlock
-}
-listener {
-  timeout = 600
-  on-timeout = systemctl suspend
-}