#38 screen.py exit value corrected

Author: tdudgeon

src/python/pipelines/rdkit/screen.py

@@ -121,8 +121,6 @@ def main():
 
     if args.meta:
         utils.write_metrics(output_base, {'__InputCount__':i, '__OutputCount__':count, 'RDKitScreen':i})
-
-    return count
 
 if __name__ == "__main__":
     main()