--- a/mercurial/statprof.py	Mon Sep 24 14:46:37 2018 -0700
+++ b/mercurial/statprof.py	Thu Jan 17 09:17:12 2019 -0800
@@ -816,9 +816,6 @@
             id2stack[-1].update(parent=parent)
         return myid
 
-    def endswith(a, b):
-        return list(a)[-len(b):] == list(b)
-
     # The sampling profiler can sample multiple times without
     # advancing the clock, potentially causing the Chrome trace viewer
     # to render single-pixel columns that we cannot zoom in on.  We
@@ -858,9 +855,6 @@
     # events given only stack snapshots.
 
     for sample in data.samples:
-        tos = sample.stack[0]
-        name = tos.function
-        path = simplifypath(tos.path)
         stack = tuple((('%s:%d' % (simplifypath(frame.path), frame.lineno),
                         frame.function) for frame in sample.stack))
         qstack = collections.deque(stack)