Try in Edit- Preferences-Plugins and uncheck spell checker etc., if you don’t want to install any of the plugins. I have the following in my plugins folder:
/usr/lib/xed/plugins/bracket-complete/bracketcompletion.plugin
/usr/lib/xed/plugins/bracket-complete/bracketcompletion.py
/usr/lib/xed/plugins/docinfo.plugin
/usr/lib/xed/plugins/filebrowser.plugin
/usr/lib/xed/plugins/joinlines.plugin
/usr/lib/xed/plugins/joinlines/__init__.py
/usr/lib/xed/plugins/libdocinfo.so
/usr/lib/xed/plugins/libfilebrowser.so
/usr/lib/xed/plugins/libmodelines.so
/usr/lib/xed/plugins/libsort.so
/usr/lib/xed/plugins/libspell.so
/usr/lib/xed/plugins/libtaglist.so
/usr/lib/xed/plugins/libtime.so
/usr/lib/xed/plugins/libtrailsave.so
/usr/lib/xed/plugins/libwordcompletion.so
/usr/lib/xed/plugins/modelines.plugin
/usr/lib/xed/plugins/open-uri-context-menu/COPYING
/usr/lib/xed/plugins/open-uri-context-menu/open-uri-context-menu.plugin
/usr/lib/xed/plugins/open-uri-context-menu/open-uri-context-menu.py
/usr/lib/xed/plugins/sort.plugin
/usr/lib/xed/plugins/spell.plugin
/usr/lib/xed/plugins/taglist.plugin
/usr/lib/xed/plugins/textsize.plugin
/usr/lib/xed/plugins/textsize/__init__.py
/usr/lib/xed/plugins/textsize/documenthelper.py
/usr/lib/xed/plugins/textsize/signals.py
/usr/lib/xed/plugins/time.plugin
/usr/lib/xed/plugins/trailsave.plugin
/usr/lib/xed/plugins/wordcompletion.plugin