ClearSyncHud

Clears the text on a synchronized HUD channel. This is not the same as sending "" because it guarantees that it won't overwrite text on another channel. For example, consider the scenario: 1. Your synchronized message goes to channel 3. 2. Someone else's non-synchronized message goes to channel 3. If you were to simply send "" on your synchronized message, then someone else's text could be overwritten.