DOCSP-23426 removing error case (#1357)

Author: ltran-mdb

source/core/sharding-reshard-a-collection.txt

@@ -184,24 +184,8 @@ resharded for up to 5 minutes. After 5 minutes you may be unable to find
 the definitive result of the write and subsequent attempts to retry the
 write fail with an ``IncompleteTransactionHistory`` error.
 
-Error Cases
------------
-
-Primary Failovers
-~~~~~~~~~~~~~~~~~
-
-If a primary failover on a replica set shard or config server occurs,
-the resharding operation aborts.
-
-If a resharding operation aborts due to a primary failover, run the
-:dbcommand:`cleanupReshardCollection` command before starting a new
-resharding operation:
-
-.. code-block:: javascript
-
-   db.runCommand({
-     cleanupReshardCollection: "<database>.<collection>"
-   })
+Error Case
+----------
 
 Duplicate ``_id`` Values
 ~~~~~~~~~~~~~~~~~~~~~~~~