\version "2.19.27"
\paper { #(set-paper-size "a7") indent = 0 }
\header { tagline = ##f }

mus = {
  \repeat volta 2 {
    s1
  }
  \alternative {
    { s1 }
    { s1 }
  }
}

setup = << \mus \mus >>

\score {
  \setup
  \layout {
    \context {
      \Score
      \remove Timing_translator
      \remove Default_bar_line_engraver
    }
    \context {
      \Staff
      \consists Timing_translator
      \consists Default_bar_line_engraver
    }
  }
}
\score {
  \setup
  \layout {
    \context {
      \Score
      \remove Timing_translator
      \remove Default_bar_line_engraver
      \remove Repeat_acknowledge_engraver
    }
    \context {
      \Staff
      \consists Timing_translator
      \consists Default_bar_line_engraver
      \consists Repeat_acknowledge_engraver
    }
  }
}