Anyone know how to remove the "click to enter" text from the Business Process bar

We are using the Business Process bar on a custom entitity.

In the main, the fields are locked down and populated by an overnight job.  One or two of the date fields will sometimes be empty.

Since they are locked it is a bit rubbish to have the "click to enter" text within the field cell since nothing happens when you click it.

We would rather have blank space.

Any solutions?