opal_check_visibility.m4: remove extraneous sym link

The sym link to this m4 is not necessary down in the component.
2015-02-18 03:40:25 -08:00 · 2015-02-18 03:40:25 -08:00 · b66fc3aed9
--- a/opal/mca/event/libevent2022/opal_check_visibility.m4
+++ b/opal/mca/event/libevent2022/opal_check_visibility.m4
@ -1 +0,0 @@
 ../../../../config/opal_check_visibility.m4