diff --git a/build/summa-sundials b/build/summa-sundials
deleted file mode 160000
index bb6d660bd8d1e5f1f5d53a8350b6721bba7f1d0b..0000000000000000000000000000000000000000
--- a/build/summa-sundials
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit bb6d660bd8d1e5f1f5d53a8350b6721bba7f1d0b