tools: Drop gnome-shell-overrides-migration.sh

The tool was added in 2018 to migrate to per-desktop overrides from the
old overrides system.

5 years later, everyone who’s going to migrate probably has migrated, so
we can delete the script and remove a process running on every login.

Signed-off-by: Philip Withnall <pwithnall@endlessos.org>
Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/2611>

tools/gnome-shell-overrides-migration.sh

@@ -1,38 +0,0 @@
-#!/bin/sh
-
-PKG_DATA_DIR=${XDG_DATA_HOME:-$HOME/.local/share}/gnome-shell
-
-MIGRATION_GUARD=$PKG_DATA_DIR/gnome-overrides-migrated
-OVERRIDE_SCHEMA=
-
-if [ -f $MIGRATION_GUARD ]; then
-  exit # already migrated
-fi
-
-# Find the right session
-if echo $XDG_CURRENT_DESKTOP | grep -q -v GNOME; then
-  exit # not a GNOME session
-fi
-
-if echo $XDG_CURRENT_DESKTOP | grep -q Classic; then
-  OVERRIDE_SCHEMA=org.gnome.shell.extensions.classic-overrides
-else
-  OVERRIDE_SCHEMA=org.gnome.shell.overrides
-fi
-
-mkdir -p $PKG_DATA_DIR
-
-for k in `gsettings list-keys $OVERRIDE_SCHEMA`
-do
-  if [ $k = button-layout ]; then
-    orig_schema=org.gnome.desktop.wm.preferences
-  else
-    orig_schema=org.gnome.mutter
-  fi
-
-  oldValue=`gsettings get $OVERRIDE_SCHEMA $k`
-  curValue=`gsettings get $orig_schema $k`
-  if [ $oldValue != $curValue ]; then
-    gsettings set $orig_schema $k $oldValue
-  fi
-done && touch $MIGRATION_GUARD

tools/meson.build

@@ -1,4 +0,0 @@
-install_data('gnome-shell-overrides-migration.sh',
-  install_dir: libexecdir,
-  install_mode: 'rwxr-xr-x'
-)