gvc: remove useless exporting of intset.h symbol openIntSet from gvc.def

The openIntSet function in common/intset.h is only used in the common
and ortho libraries which are both static libraries that are built
into the gvc dynamic-link library.

Towards https://gitlab.com/graphviz/graphviz/-/issues/2058.

diff --git a/lib/gvc/gvc.def b/lib/gvc/gvc.def
index e9efc0e07178b2f91a3f0572398fa9c2c22cfac1..8ae556ef1bcc1ba93a2a344d3fdc5eb3f2aa24b4 100644 (file)
--- a/lib/gvc/gvc.def
+++ b/lib/gvc/gvc.def
@@ -318,7 +318,6 @@ gvPluginList
 EdgeLabelsDone
 get_gradient_points
 G_margin
-openIntSet
 mkClustMap
 findCluster
 rank2