Cleanup old and deprecated Swift configuration

This is old and deprecated configuration settings for Swift not needed
anymore because kolla-ansible correctly configure glance-api.conf and
glance-swift.conf since Idddbf2ce741e0486d60e1de88c77a7f0332a5a2b when
kolla_enable_swift variable set to true. This change can be backported
through all releases till the Train.

Change-Id: I5273edc8265f115519f499e85fe12f8d22306c4b
Signed-off-by: Maksim Malchuk <maksim.malchuk@gmail.com>

ansible/roles/kolla-openstack/templates/glance.conf.j2

 # {{ ansible_managed }}
 
-{% if kolla_enable_swift | bool %}
-[glance_store]
-
-default_store=swift
-stores=swift
-{% raw %}
-swift_store_user=service:{{ glance_keystone_user }}
-swift_store_key={{ glance_keystone_password }}
-swift_store_auth_version=2
-swift_store_auth_address={{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}/v2.0
-{% endraw %}
-swift_store_endpoint_type=internalURL
-swift_store_create_container_on_put=True
-
-#swift_store_config_file=/etc/glance/glance-api.conf
-#default_swift_reference=swift_store_ref
-
-#[swift_store_ref]
-#{% raw %}
-#user=service:{{ glance_keystone_user }}
-#key={{ glance_keystone_password }}
-#auth_version=2
-#auth_address={{ internal_protocol }}://{{ kolla_internal_fqdn }}:{{ keystone_public_port }}/v2.0
-#user_domain_id=default
-#project_domain_id=default
-#{% endraw %}
-
-{% endif %}
-
 {% if kolla_extra_glance %}
 #######################
 # Extra configuration