New in version 1.1.
Remove markup from leaves in expr:
abjad> staff = Staff("c'8 d'8 e'8 f'8")
abjad> leaftools.label_leaves_in_expr_with_pitch_class_numbers(staff)
abjad> f(staff)
\new Staff {
c'8 _ \markup { \small 0 }
d'8 _ \markup { \small 2 }
e'8 _ \markup { \small 4 }
f'8 _ \markup { \small 5 }
}
abjad> markuptools.remove_markup_from_leaves_in_expr(staff)
abjad> f(staff)
\new Staff {
c'8
d'8
e'8
f'8
}
Return none.
Changed in version 2.0: renamed label.clear_leaves() to markuptools.remove_markup_from_leaves_in_expr().