remove title

Signed-off-by: Michael Leuschel <leuschel@uni-duesseldorf.de>

Train12/VisBTrainSimple.def

@@ -9,7 +9,6 @@ DEFINITIONS
  VISB_JSON_FILE == "";
  VISB_SVG_BOX == rec(height:100, width:600, viewBox:"-1 -1 22 5");
  VISB_SVG_OBJECTS0 == rec(svg_class:"polygon", stroke:"gray", `stroke-width`:0.1, fill:"gray",
-       title:```train 2 at position ${train2_back}..${train2_front}```,
        transform: "translate(0,2.2)",
        points:svg_axis(0..21,1,21,1)
       );