hyprland: nuke unused plugin config to fix error on 0.54

dots/.config/hypr/hyprland/general.conf

@@ -166,16 +166,3 @@ cursor {
     hotspot_padding = 1
 }
 
-# Overview
-plugin {
-    hyprexpo {
-        columns = 3
-        gap_size = 5
-        bg_col = rgb(000000)
-        workspace_method = first 1 # [center/first] [workspace] e.g. first 1 or center m+1
-
-        enable_gesture = false # laptop touchpad, 4 fingers
-        gesture_distance = 300 # how far is the "max"
-        gesture_positive = false
-    }
-}