streamclone: stop using 'vfs.mustaudit = False'

Now that each call disable the auditing on its own, we can safely drop this the
mustaudit usage. No other code is modified.

mercurial/streamclone.py

@@ -213,12 +213,9 b' def generatev1(repo):'
                   (len(entries), total_bytes))
 
     svfs = repo.svfs
-    oldaudit = svfs.mustaudit
     debugflag = repo.ui.debugflag
-    svfs.mustaudit = False
 
     def emitrevlogdata():
-        try:
             for name, size in entries:
                 if debugflag:
                     repo.ui.debug('sending %s (%d bytes)\n' % (name, size))
@@ -231,8 +228,6 b' def generatev1(repo):'
                     data = svfs(name, auditpath=False)
                     for chunk in util.filechunkiter(data, limit=size):
                         yield chunk
-        finally:
-            svfs.mustaudit = oldaudit
 
     return len(entries), total_bytes, emitrevlogdata()