sc: ODF import of data pilot:
sc: ODF import of data pilot:

Revert part of 8e417a8fed528034e946bd25e66ce346c1b5384d that
looks unnecessary:

this is used in ScXMLDataPilotMembersContext::CreateChildContext() which
is below table:data-pilot-level which actually uses the
data-pilot-member element, whereas the data-pilot-group element occurs
below table:data-pilot-groups.

Change-Id: I7a3183bd3dbfa98b3bdf5e581b700910025af965

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