remove unused XHR headers method
remove unused XHR headers method

ceseale/tangram,DHaylock/tangram,ceseale/tangram,TitoAgudelo/tangram,taylorhxu/tangram,rosamcgee/tangram,tangrams/tangram,DHaylock/tangram,xvilan/tangram,taylorhxu/tangram,zerebubuth/tangram,rosamcgee/tangram,xvilan/tangram,TitoAgudelo/tangram,DHaylock/tangram,TitoAgudelo/tangram,tangrams/tangram,ceseale/tangram,xvilan/tangram,zerebubuth/tangram,taylorhxu/tangram,zerebubuth/tangram,rosamcgee/tangram