Remove unused shared scripts and vpn_scripts-not-used folder

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/rego-tunnel/shared/xstartup

@@ -1,32 +0,0 @@
-#!/bin/bash
-# VNC xstartup - launches terminal with cisco-vpn script
-# This runs inside the VNC session
-
-unset SESSION_MANAGER
-unset DBUS_SESSION_BUS_ADDRESS
-
-export XDG_RUNTIME_DIR=/tmp/runtime-root
-mkdir -p $XDG_RUNTIME_DIR
-chmod 700 $XDG_RUNTIME_DIR
-
-# GPU/WebKit workarounds for Cisco UI
-export GDK_BACKEND=x11
-export WEBKIT_DISABLE_DMABUF_RENDERER=1
-
-# Start dbus session
-[ -x /usr/bin/dbus-launch ] && eval $(dbus-launch --sh-syntax --exit-with-session)
-
-# Start window manager
-openbox &
-sleep 2
-
-# Make sure the script is executable
-chmod +x /shared/cisco-vpn 2>/dev/null || true
-
-# Start xterm with the cisco-vpn script
-# The script handles everything: vpnagentd, vpnui, auto-login, forwarding
-xterm -fa 'Monospace' -fs 11 -bg black -fg white -geometry 130x45+10+10 \
-    -title "Rego VPN Terminal" \
-    -e "bash -c '/shared/cisco-vpn; exec bash'" &
-
-wait