drop pyugrid in site.cfg (#4373)

bjlittle · web-flow · commit 7fbc2000893c · 2021-10-14T09:00:14.000+01:00
diff --git a/setup.cfg b/setup.cfg
@@ -86,7 +86,6 @@ all =
     mo_pack
     nc-time-axis>=1.3
     pandas
-    pyugrid
     stratify
     %(docs)s
     %(test)s
