Just 2 percent of users donating can help bring in more developers to keep Blender the best 3D software out there. Free for everyone, forever!
Reference
Draw Mode
Toolbar ‣ Cutter
The Cutter tool delete points in between intersecting strokes.
Draw a dotted line around the strokes you want to be cut. After releasing the pointer all the points on the selected strokes will be deleted until another intersecting stroke is found.
Original drawing.¶
Lasso Selecting the strokes to be cut.¶
Final result.¶