remove code for change sign of d0 after seeding. Sign of d0 is taken care in initialization of tracking.

Author: tongtongcao

reconstruction/cvt/src/main/java/org/jlab/rec/cvt/services/TracksFromTargetRec.java

@@ -169,12 +169,7 @@ public List<Seed> getSeeds(List<ArrayList<Cluster>> clusters, List<ArrayList<Cro
             for(Seed s : ovlrm) {
                 s.setId(s.getId()*-1);
             }
-        }
-        
-        // To match with d0 defition in tracking
-        for(Seed s : seeds) { 
-            s.getHelix().setDCA(-s.getHelix().getDCA());
-        }
+        }        
 
         this.CVTseeds = seeds;
         // Got seeds;