CppunitTest_sw_uiwriter: disable this on OS X for now
CppunitTest_sw_uiwriter: disable this on OS X for now

Works on MacOSX-x86_64_49-TDF, but not on Jenkins_MacOSX for some
reason.

Change-Id: I027fa7d20e6a9706f17905100882cca9ad807493

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