Hiding dates from Gantt view lefthand panel

In the Gantt view, there is a panel on the lefthand side that can be hidden or shown. When the Gantt view loads, it does so with the panel open. The panel shows the items in the Gantt as well as the dates associated with the items, that is shown in the actual Gantt chart. I would like a way to hide those dates in the panel (the reason is that only want to show my dates to the relevant quarter, which I can do in the Gantt chartt, but then showing the dates written out in the panel might mislead or confuse my viewers.