fix: drop upstream multi-GPU workarounds that don't work on Chester

Restore hypridle.conf to the working Chester baseline (Step 1 dim + simple
step-3 resume) keeping our after_sleep_cmd (sleep 2; dpms on). Remove the
orphaned wake-display.sh / unstick-display.sh scripts added upstream for the
multi-GPU black-screen workaround.

hypr/scripts/unstick-display.sh

@@ -1,35 +0,0 @@
-#!/bin/bash
-# Recovery script for when Hyprland display goes black after lock/sleep.
-# This resets the display pipeline without killing your session.
-# Run from another TTY (Ctrl+Alt+F3).
-
-export XDG_RUNTIME_DIR=/run/user/$(id -u)
-
-# Find the active Hyprland instance by trying each socket until one responds
-for SIG in "$XDG_RUNTIME_DIR/hypr"/*/; do
-    [ -d "$SIG" ] || continue
-    SIGNAME=$(basename "$SIG")
-    export HYPRLAND_INSTANCE_SIGNATURE=$SIGNAME
-    if hyprctl monitors >/dev/null 2>&1; then
-        FOUND=1
-        break
-    fi
-done
-
-if [ -z "$FOUND" ]; then
-    echo "Could not find active Hyprland socket. Is Hyprland running?"
-    exit 1
-fi
-
-echo "Resetting display pipeline..."
-
-pkill hyprlock 2>/dev/null
-hyprctl dispatch dpms off
-sleep 1
-hyprctl dispatch dpms on
-
-# Force a layer tree rebuild to clear orphaned surfaces (e.g. dim_layer)
-pkill -x waybar 2>/dev/null
-hyprctl dispatch exec waybar 2>/dev/null
-
-echo "Done. Switch back to Hyprland (Ctrl+Alt+F2)."

hypr/scripts/wake-display.sh

@@ -1,26 +0,0 @@
-#!/bin/bash
-# hypridle step 3 on-resume — wake display after idle off.
-# Cycles DPMS only if the display was actually turned off (avoids flicker
-# when the user returns before step 3 fires).
-
-export XDG_RUNTIME_DIR=/run/user/$(id -u)
-
-# Find the active Hyprland socket (not old/stale ones)
-for SIG in "$XDG_RUNTIME_DIR/hypr"/*/; do
-    [ -d "$SIG" ] || continue
-    SIGNAME=$(basename "$SIG")
-    export HYPRLAND_INSTANCE_SIGNATURE=$SIGNAME
-    hyprctl monitors >/dev/null 2>&1 && break
-done
-
-DPMS=$(hyprctl monitors 2>/dev/null | grep dpmsStatus | awk '{print $2}')
-
-if [ "$DPMS" = "0" ]; then
-    # Display was off — cycle DPMS to force re-creation of hyprlock surfaces
-    hyprctl dispatch dpms off
-    sleep 1
-fi
-
-hyprctl dispatch dpms on
-ddcutil setvcp 10 100
-wpctl set-mute @DEFAULT_AUDIO_SINK@ 0