Remove some unimportant commands on document close
Remove some unimportant commands on document close

わざわざ呼ばなくても勝手に処理されるはずなので削除する。

yangchenghu/CotEditor,angi2/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,onevcat/CotEditor,onevcat/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,angi2/CotEditor,onevcat/CotEditor,eric-seekas/CotEditor,angi2/CotEditor,uchuugaka/CotEditor,angi2/CotEditor,uchuugaka/CotEditor,angi2/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,angi2/CotEditor,yangchenghu/CotEditor,eric-seekas/CotEditor,angi2/CotEditor,yangchenghu/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,uchuugaka/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor