Add compare header version to create_image_from_server helper

This PS uses `compare_version_header_to_response` in
`api_version_utils` in create_image_from_server to correctly parse
the image_id from the returned image, based on the microversion
in the response body.

According to the Nova docs for this API [0], the image_id is
located in location header for < 2.45 microversion but for
>= 2.45 it is located in resp.response['image_id'].

This PS also removes an unnecessary LOG.debug statement from
`compare_version_header_to_response`, pointed out by last comment in
this other PS [1].

[0] https://developer.openstack.org/api-ref/compute/#create-image-createimage-action
[1] Ib97e65cca468a09bbeaf68fcfe0e8192674a481e

Change-Id: I413a0b79f47ead94a94ac5cf862002eeb0b8543b
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 683d3e9..5c4767c 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -262,7 +262,11 @@
 
         image = cls.compute_images_client.create_image(server_id, name=name,
                                                        **kwargs)
-        image_id = data_utils.parse_image_id(image.response['location'])
+        if api_version_utils.compare_version_header_to_response(
+            "OpenStack-API-Version", "compute 2.45", image.response, "lt"):
+            image_id = image['image_id']
+        else:
+            image_id = data_utils.parse_image_id(image.response['location'])
         cls.addClassResourceCleanup(test_utils.call_and_ignore_notfound_exc,
                                     cls.compute_images_client.delete_image,
                                     image_id)
diff --git a/tempest/lib/common/api_version_utils.py b/tempest/lib/common/api_version_utils.py
index 98f174d..bcb076b 100644
--- a/tempest/lib/common/api_version_utils.py
+++ b/tempest/lib/common/api_version_utils.py
@@ -12,7 +12,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from oslo_log import log as logging
 import testtools
 
 from tempest.lib.common import api_version_request
@@ -20,7 +19,6 @@
 
 
 LATEST_MICROVERSION = 'latest'
-LOG = logging.getLogger(__name__)
 
 
 class BaseMicroversionTest(object):
@@ -166,7 +164,6 @@
     if op is None:
         msg = ("Operation %s is invalid. Valid options include: lt, eq, gt, "
                "le, ne, ge." % operation)
-        LOG.debug(msg)
         raise exceptions.InvalidParam(invalid_param=msg)
 
     # Remove "volume" from "volume <microversion>", for example, so that the