There exists a jstest that attempts to create a cursor, then modifies the data underneath the cursor in order to see if the cursor picks up the changes. We don't guarantee any consistent behavior on the data underlying a created cursor, so this test shouldn't exist.

Also get rid of these TODOs related to the test:

buildscripts/resmokeconfig/suites/multi_stmt_txn_jscore_passthrough_with_migration.yml

    # TODO: SERVER-38215 delx.js touches 2 different collections, which makes it susceptible for
-  # migration to happen in between and cause the transaction to abort due to StaleConfigException
-  # because it is not the first op of the transaction.
- jstests/core/delx.js