don't import plyr (seems unused)

alyst · alyst · commit e77fd875b9bd · 2016-05-19T00:12:49.000+02:00
diff --git a/DESCRIPTION b/DESCRIPTION
@@ -31,7 +31,6 @@ Imports:
     base64enc,
     htmlwidgets,
     tidyr,
-    plyr,
     hexbin
 Suggests:
     dplyr,
