Remove legacy libvirtError arguments

The fields have been deprecated in C with
git:f60dc0bc09f09c6817d6706a9edb1579a3e2b2b8

They are only passed to the libvirtError constructor, but not stored for
later or used anywhere else.

sed -ri '/raise libvirtError/s/, \w+=self(\._dom)?//' *.py

Signed-off-by: Philipp Hahn <hahn@univention.de>

libvirt-override-virDomainCheckpoint.py

@@ -10,7 +10,7 @@
         """List all child checkpoints and returns a list of checkpoint objects"""
         ret = libvirtmod.virDomainCheckpointListAllChildren(self._o, flags)
         if ret is None:
-            raise libvirtError("virDomainCheckpointListAllChildren() failed", conn=self)
+            raise libvirtError("virDomainCheckpointListAllChildren() failed")
 
         retlist = list()
         for chkptr in ret: