Delete Network Admin Tools stub.

We're going to create this as a separate plugin instead.
Delete Network Admin Tools stub.

We're going to create this as a separate plugin instead.

The file itself was removed in 7e7eec17ff1d77bd01625281a09999538d450aa8 and the references to it in this commit should have been removed at that time as well.
Display post statuses in the Payment Requests list table.
Accept 2 parameters for `wp_insert_post_data` callback.
Show custom post statuses in the All filter results.