How to remove Text scripts

[Robert Schmaus]

Dear Ponderers,

I need to remove text scripts in certain situations from the voices. 
Text scripts are engraved by the Text_engraver, so I tried to remove 
that from the voice, like this:

----------

\version "2.19.65"
\score {
  \new Staff \new Voice \with { \remove Text_engraver } { c'1-"Text" }
}

--------

While this works - the text script *is* in fact gone -, it also 
generates this warning:

warning: cannot add text scripts to individual note heads

My question is: If this is indeed not the correct way to remove text 
scripts, which one is?

Thanks in advance,
Best, Robert