Remove duplicated line

Signed-off-by: Pierre R. Mai <pmai@pmsf.de>

Author: pmai

osi_roadmarking.proto

@@ -100,7 +100,6 @@ message RoadMarking
     //
     // \note It is implementation-specific how model_references are resolved to
     // 3d models.
-    // 3d models.
     //
     // \note Road markings' base objects are positioned differently from other
     // OSI objects: their local z-axis corresponds to how the marking is placed