Remove obsolete password from qemu.hook

qemu.hook

@@ -146,19 +146,6 @@ def cleanup_files():
                 pass
 
 
-def get_buildbot_password():
-    """
-    Retrieve buildbot password for guest
-    """
-    fname = '/etc/libvirt/buildbot.pwd'
-    with open(fname) as file_handle:
-        content = [line.rstrip('\n') for line in file_handle]
-    try:
-        return content[0]
-    except (TypeError, IndexError):
-        return "password"
-
-
 if __name__ == "__main__":
     try:
         # pylint: disable=unbalanced-tuple-unpacking