remove extraneous refresh() in example/load.py (elastic#876)

After Git repo is loaded to ES through bulk(), Line 180 performs an index refresh to make documents available for searching. The same operation is then repeated in Line 188; remove this duplicate refresh.

Author: osvalban

example/load.py

@@ -183,9 +183,5 @@ def load_repo(client, path=None, index='git'):
  initial_commit = es.get(index='git', doc_type='doc', id='20fbba1230cabbc0f4644f917c6c2be52b8a63e8')
  print('%s: %s' % (initial_commit['_id'], initial_commit['_source']['committed_date']))
 
-
- # refresh to make the documents available for search
- es.indices.refresh(index='git')
-
  # and now we can count the documents
  print(es.count(index='git')['count'], 'documents in index')