libcli/security Remove unused sec_acl_equal()

libcli/security Remove unused sec_acl_equal()

This was orphaned by changing sec_desc_equal() to the stricter
security_descriptor_equal() by
f4195183a47b0e7c8bc9644d62b123f7880f3fcd in 2009.

(The difference here was that sec_acl_equal allowed for equivilent ordering.  I've checked the callers, and this function is only used to skip actual ACL sets, or to reference a cache, so this seems

Autobuild-User: Andrew Bartlett <abartlet@samba.org>
Autobuild-Date: Sun Oct 24 22:21:23 UTC 2010 on sn-devel-104