Change to obtain the feed id from the route, for opentripplanner#1990

src/main/java/org/opentripplanner/routing/edgetype/TripPattern.java

@@ -700,12 +700,7 @@ public FrequencyEntry getSingleFrequencyEntry() {
      * @return feed id for this trip pattern
      */
     public String getFeedId() {
-        if (code != null && code.length() > 0) {
-            // The key stored in patternForId is the pattern code that is constructed as.
-            // Agency:RouteId:DirectionId:PatternNumber, the first part is the feed id.
-            return code.substring(0, code.indexOf(':'));
-        }
-        // If we cant obtain the feed id from the code, we can get it from the route.
+        // The feed id is the same as the agency id on the route, this allows us to obtain it from there.
         return route.getId().getAgencyId();
     }
 }