How to hide fingering in the output

[Ivanov Dmitry]

This code will output "c" note with number "3" above it. I learned,
how to hide the cleff and the time signature. How can I hide the
fingering as well without removing "-3" from "c8-3". I need to
generate a pdf without fingers sometimes and don't want to change the
code.

\version "2.18.2"
\language "english"
\paper {
  indent = 0
}
\include "../melody-code.ly"
\new Staff  \relative c''{
  \time 2/4
  \once \override Staff.TimeSignature #'stencil = ##f
  \override Staff.Clef #'stencil = ##f
  c8-3
}