背中が痒いだけでわざわざ呼ぶなー(謎
http://oshiete.goo.ne.jp/qa/6907500.html
Optional Object. Specifies how to shift cells to replace deleted cells. Can be one of the following XlDeleteShiftDirection constants: xlShiftToLeft or xlShiftUp. If this argument is omitted, Microsoft Excel decides based on the shape of the range.
それだけ?酷い…orz
LibreOfficeのXCellRange::removeRangeで省略不可能というのが嬉しい