Remove extra quotation in worker failure docs
@@ -17,7 +17,7 @@ to various exceptions appearing when you interact with your local client, such a
Note the special case of ``KilledWorker``: this means that a particular task was
tried on a worker, and it died, and then the same task was sent to another worker,
-which also died. After a configurable number of deaths (config key "
+which also died. After a configurable number of deaths (config key
``distributed.scheduler.allowed-failures``), Dask decides to blame the
task itself, and returns this exception. Note, that it is possible for a task to be
unfairly blamed - the worker happened to die while the task was active, perhaps
