Removing the "Day" Summary

The next update of Poker Copilot will no longer have the “Day” Summary. The reason for this, as pointed out by long-time Poker Copilot user Jean-Paul, is that the new “Hands by Date” and “Tournaments by Date” Summaries show the same data but with more options, more power, and a corresponding chart.

In the spirit of “keep things as clean, clear, and simple as possible,” I’ve removed the obsolete summary.