Revert "glib hooks: move gsettings-schemas if on wrong place"

This reverts commit 5df1aadd68a157997c5ff419a8f4e1db23e5a5ae.

It introduced some problems.

pkgs/development/libraries/glib/setup-hook.sh

···
 
 envHooks+=(make_glib_find_gsettings_schemas)
 
-glibFixupPhase() {
-    # Move gschemas in case the install flag didn't help
-    if [ -d "$prefix/share/glib-2.0/schemas" ]; then
-        mkdir -p "$prefix/share/gsettings-schemas/$name/glib-2.0"
-        mv "$prefix/share/glib-2.0/schemas" "$prefix/share/gsettings-schemas/$name/glib-2.0/"
-    fi
-
-    addToSearchPath GSETTINGS_SCHEMAS_PATH "$prefix/share/gsettings-schemas/$name"
+glibPreFixupPhase() {
+    addToSearchPath GSETTINGS_SCHEMAS_PATH "$out/share/gsettings-schemas/$name"
 }
 
-fixupOutputHooks+=(glibFixupPhase)
-
+preFixupPhases="$preFixupPhases glibPreFixupPhase"