BandQ recover events for Xib

This is a bug fix related to the discussion at: lhcb-datapkg/AnalysisProductions!2030 (comment 8705113)

The B-for-spectroscopy hlt2 full-stream line and sprucing line share the same builder. The Xib mass window in the builder is wrong in 2024 data taking. In principle the bug will be there and cannot be fixed for 2024 hlt2 output.

When developing the EOY bug fixes in !3839 (merged) , people noticed the issue and update the builder accordingly. However, people were not aware of the existence of the hlt2 filtering in the corresponding sprucing line. The hlt2 filtering will still contain the wrong Xib mass window cut (>5780MeV), and kill about 50% of Xib signals .

This MR is mainly for removing the hlt2 filter of the Xib spectroscopy sprucing lines, and rely on other physics full stream lines to recover the efficiency.

Besides, the make_xib2cx_for_spectroscopy default AM cut is not updated in the BandQ central MR. Try to update it together here.