Revert "Ugly workaround for historic sxw files..."
Revert "Ugly workaround for historic sxw files..."

There is cleaner, scriptable and out-of-source-tree workaround available at:
http://fridrich.blogspot.ch/2013/08/service-announcement-openning-of-sxw.html

This reverts commit 36c64c875f5819bf5ada2bb657c490441bc24644.

Change-Id: I37362e996ff1c73bcc88d1037defd07d7bab90af

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core