remove unused code in sfx2::sidebar

removes these methods:
sfx2::sidebar::Context::EvaluateMatch(std::vector<sfx2::sidebar::Context>)
sfx2::sidebar::EnumContext::EvaluateMatch(std::vector<sfx2::sidebar::EnumContext>)

Change-Id: I14314d526a5306530d0381ca8bf6ab150d3dd5a0
remove unused code ScFormulaCell::HasColRowName()

Change-Id: I907492e1385f76d27cc8559d599f518d3b91f75d
remove unused code ScDocument::RebuildFormulaGroups()

and the consequently unused code
ScTable::RebuildFormulaGroups()

Change-Id: Ic7dfb7420c7cc4ca52c4ed4fe580fbb499ab53b6
remove unused code ScDocument::GetFormulaTokens

and consequently unused code
ScTable::GetFormulaTokens
ScColumn::GetFormulaTokens

Change-Id: Iad1fd45e67489bb8b0f9ed96a36b647e40e6f774
remove unused code ScDocument::CountNotes()

Change-Id: Ic0f638f1e052b2d9117207f234d879638cbfc19a
remove unused code ScDocument::IsEmptyData(short, short)

and the consequently unused code
ScTable::IsEmptyData(short, short)

Change-Id: I622de7c1118d61c0e434f80d1b7c41ace24c5592