Remove duplicate 'have' in doc/source/api/reference/acls.rst
Remove duplicate 'have' in doc/source/api/reference/acls.rst

Change-Id: I2ae3f7d4f10af11b569f828d1ee998da7242ee3f

openstack/barbican,openstack/barbican,cneill/barbican,cloudkeep/barbican,MCDong/barbican,cloudkeep/barbican,cneill/barbican,MCDong/barbican