diff -r 6c55ce51d6c3 -r 33a6eee08db2 mercurial/repository.py
--- a/mercurial/repository.py	Fri Apr 13 11:08:46 2018 -0700
+++ b/mercurial/repository.py	Wed Apr 11 16:18:26 2018 -0700
@@ -284,29 +284,6 @@
 
     All peer instances must conform to this interface.
     """
-    def iterbatch():
-        """Obtain an object to be used for multiple method calls.
-
-        Various operations call several methods on peer instances. If each
-        method call were performed immediately and serially, this would
-        require round trips to remote peers and/or would slow down execution.
-
-        Some peers have the ability to "batch" method calls to avoid costly
-        round trips or to facilitate concurrent execution.
-
-        This method returns an object that can be used to indicate intent to
-        perform batched method calls.
-
-        The returned object is a proxy of this peer. It intercepts calls to
-        batchable methods and queues them instead of performing them
-        immediately. This proxy object has a ``submit`` method that will
-        perform all queued batchable method calls. A ``results()`` method
-        exposes the results of queued/batched method calls. It is a generator
-        of results in the order they were called.
-
-        Not all peers or wire protocol implementations may actually batch method
-        calls. However, they must all support this API.
-        """
 
 class ipeerbaselegacycommands(ipeerbase, ipeerlegacycommands):
     """Unified peer interface that supports legacy commands."""