different behavior of "\remove Time_signature_engraver" in Lilypond-Book

[Charles Gran]

If I run this as a separate lily file the time signature is 
removed.  It is not removed when I embed this in a latex document 
as shown.
(WindowsXP, 2.4.2) -Charles

\begin{lilypond}
\relative c' {
\clef percussion 
\autoBeamOff
\cadenzaOn
c8. c16 c8 c c16 c c8
c16 c c4 c16 c c8 c
c16 c8. c8 c c c16 c
c4 c c \bar "|."
}
\layout {
  \context {
    \Staff
    \remove Time_signature_engraver
  }
}
\end{lilypond}