wpa_supplicant: drop post-install message

diff --git a/extra/wpa_supplicant/post-install b/extra/wpa_supplicant/post-install
deleted file mode 100755 (executable)
index a50eb53..0000000
--- a/extra/wpa_supplicant/post-install
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-
-cat <<EOF
-
-NOTE: You can now remove 'libnl' as wpa_supplicant
-      no longer needs it (static libnl-tiny).
-
-EOF