Removed redundant 'killAzrael' calls in 'test_wsclient'.
Removed redundant 'killAzrael' calls in 'test_wsclient'.

olitheolix/azrael,daviddeng/azrael,daviddeng/azrael,daviddeng/azrael,olitheolix/azrael,olitheolix/azrael,daviddeng/azrael,olitheolix/azrael,daviddeng/azrael,olitheolix/azrael