Delete a Brush From The Brush Preset Picker
To delete a brush from the Brush Preset Picker hold the Alt (Mac: Option) key, and the cursor will turn to a black arrow with scissors, then hover over any brush preset and click to delete it.
To delete a brush from the Brush Preset Picker hold the Alt (Mac: Option) key, and the cursor will turn to a black arrow with scissors, then hover over any brush preset and click to delete it.