Remove trailing time-signature

[Br. Gabriel-Marie | SSPX]

During my piece I have a \break which causes the 
time-signature to be inserted at the end of that line, but 
all my music fits onto one small page, so I don't want that 
extra markup.

So how do I suppress the extra time-signature at the end of 
the line?

I found this, but it doesn't seem to do the trick:
\override Score.TimeSignature. = #end-of-line-invisible