Drop RKorAPClient dependency

Change-Id: Ib38f4aa269cce057d032dfe1d633e9012c5e0562
diff --git a/DESCRIPTION b/DESCRIPTION
index e433d58..c6f6c11 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -18,8 +18,7 @@
   magrittr,
   ggthemes,
   ggplot2,
-  scales,
-  RKorAPClient
+  scales
 Collate:
   'idsThemeR.R'
   'highcharter-themes.R'