remove deprecated comment

MarcelOliver · MarcelOliver · commit 3def60455fd3 · 2021-04-22T13:26:47.000+02:00
diff --git a/osi_roadmarking.proto b/osi_roadmarking.proto
@@ -204,7 +204,6 @@ message RoadMarking
             COLOR_GREEN = 7;
 
             // Marking with violet color.
-            // The color violet may be deprecated in the future
             //
             COLOR_VIOLET = 8;
 
