Stop trying to send image_size to the server

It turns out the server does not support this, and the underlying
code gets very unhappy.

Co-Authored-By:Itisha <ishadewan07@gmail.com>
Change-Id: If67c11da28adbb2d793430d122e3930cc278737f

glanceclient/tests/unit/v2/test_images.py

@@ -802,11 +802,9 @@ class TestController(testtools.TestCase):
         image_data = 'CCC'
         image_id = '606b0e88-7c5a-4d54-b5bb-046105d4de6f'
         self.controller.upload(image_id, image_data, image_size=3)
-        body = {'image_data': image_data,
-                'image_size': 3}
         expect = [('PUT', '/v2/images/%s/file' % image_id,
                   {'Content-Type': 'application/octet-stream'},
-                  sorted(body.items()))]
+                  image_data)]
         self.assertEqual(expect, self.api.calls)
 
     def test_data_without_checksum(self):

glanceclient/v2/images.py

@@ -205,15 +205,11 @@ class Controller(object):
 
         :param image_id: ID of the image to upload data for.
         :param image_data: File-like object supplying the data to upload.
-        :param image_size: Total size in bytes of image to be uploaded.
+        :param image_size: Unused - present for backwards compatability
         """
         url = '/v2/images/%s/file' % image_id
         hdrs = {'Content-Type': 'application/octet-stream'}
-        if image_size:
-            body = {'image_data': image_data,
-                    'image_size': image_size}
-        else:
-            body = image_data
+        body = image_data
         self.http_client.put(url, headers=hdrs, data=body)
 
     def delete(self, image_id):