We don't need utils.trycmd any more.

Its only used in one place, let's just call processutils
directly instead.

Change-Id: Iff03a1b6889133ca938190a49fbf0b6b18b31c96
blueprint: hurrah-for-privsep

nova/utils.py

@@ -243,17 +243,6 @@ def ssh_execute(dest, *cmd, **kwargs):
     return execute(*ssh_cmd, **kwargs)
 
 
-def trycmd(*args, **kwargs):
-    """Convenience wrapper around oslo's trycmd() method."""
-    if kwargs.get('run_as_root', False):
-        if CONF.use_rootwrap_daemon:
-            return RootwrapDaemonHelper(CONF.rootwrap_config).trycmd(
-                *args, **kwargs)
-        else:
-            return RootwrapProcessHelper().trycmd(*args, **kwargs)
-    return processutils.trycmd(*args, **kwargs)
-
-
 def generate_uid(topic, size=8):
     characters = '01234567890abcdefghijklmnopqrstuvwxyz'
     choices = [random.choice(characters) for _x in range(size)]