Fix volume type test extra_specs

The test_create_from_image_with_volume_type_image_property test was
creating a volume type with extra_specs (storage_protocol and
vendor_name) that don't match the backend capabilities in many
deployments. This caused the Cinder scheduler to fail finding a
suitable host, resulting in volumes going into ERROR status.

The purpose of this test is to verify that the cinder_img_volume_type
image property correctly selects a volume type when creating a volume
from an image. The test doesn't need to validate volume type
extra_specs, so these have been removed.

This allows the test to work on any Cinder backend without requiring
specific capability matching.

Closes-Bug: #2130017
Change-Id: I0ab4e1478255c5dc4a8e4cb9ab2dc4f73b447924
Signed-off-by: Jason Paroly <jparoly@redhat.com>
diff --git a/cinder_tempest_plugin/api/volume/test_create_from_image.py b/cinder_tempest_plugin/api/volume/test_create_from_image.py
index f44f630..11243ed 100644
--- a/cinder_tempest_plugin/api/volume/test_create_from_image.py
+++ b/cinder_tempest_plugin/api/volume/test_create_from_image.py
@@ -41,12 +41,7 @@
         volume_type_name = 'vol-type-for-6e9266ff-a917-4dd5-aa4a-c36e59e7a2a6'
         description = ('Generic volume_type for test '
                        '6e9266ff-a917-4dd5-aa4a-c36e59e7a2a6')
-        proto = CONF.volume.storage_protocol
-        vendor = CONF.volume.vendor_name
-        extra_specs = {"storage_protocol": proto,
-                       "vendor_name": vendor}
         kwargs = {'description': description,
-                  'extra_specs': extra_specs,
                   'os-volume-type-access:is_public': True}
         volume_type = self.create_volume_type(name=volume_type_name,
                                               **kwargs)