Fix glance create image

Change glance create image to common function with cleanup.

Change-Id: I99b87c51f675717863f0b015b08f0016b187f0d8
diff --git a/tempest/api/image/admin/v2/test_images.py b/tempest/api/image/admin/v2/test_images.py
index 9844a67..f22f321 100644
--- a/tempest/api/image/admin/v2/test_images.py
+++ b/tempest/api/image/admin/v2/test_images.py
@@ -34,11 +34,10 @@
     def test_admin_deactivate_reactivate_image(self):
         # Create image by non-admin tenant
         image_name = data_utils.rand_name('image')
-        image = self.client.create_image(name=image_name,
-                                         container_format='bare',
-                                         disk_format='raw',
-                                         visibility='private')
-        self.addCleanup(self.client.delete_image, image['id'])
+        image = self.create_image(name=image_name,
+                                  container_format='bare',
+                                  disk_format='raw',
+                                  visibility='private')
         # upload an image file
         content = data_utils.random_bytes()
         image_file = six.BytesIO(content)
diff --git a/tempest/api/image/v2/test_images.py b/tempest/api/image/v2/test_images.py
index 6f8d239..236d93d 100644
--- a/tempest/api/image/v2/test_images.py
+++ b/tempest/api/image/v2/test_images.py
@@ -83,10 +83,10 @@
         image_name = data_utils.rand_name('image')
         container_format = CONF.image.container_formats[0]
         disk_format = CONF.image.disk_formats[0]
-        image = self.client.create_image(name=image_name,
-                                         container_format=container_format,
-                                         disk_format=disk_format,
-                                         visibility='private')
+        image = self.create_image(name=image_name,
+                                  container_format=container_format,
+                                  disk_format=disk_format,
+                                  visibility='private')
         # Delete Image
         self.client.delete_image(image['id'])
         self.client.wait_for_resource_deletion(image['id'])
@@ -105,11 +105,10 @@
         image_name = data_utils.rand_name('image')
         container_format = CONF.image.container_formats[0]
         disk_format = CONF.image.disk_formats[0]
-        image = self.client.create_image(name=image_name,
-                                         container_format=container_format,
-                                         disk_format=disk_format,
-                                         visibility='private')
-        self.addCleanup(self.client.delete_image, image['id'])
+        image = self.create_image(name=image_name,
+                                  container_format=container_format,
+                                  disk_format=disk_format,
+                                  visibility='private')
         self.assertEqual('queued', image['status'])
 
         # Now try uploading an image file