The ornamental design for a lintremover, as shown and described.
FIG. 1 is a perspective view of the lint remover.
FIG. 2 is a top view thereof.
FIG. 3 is a left side view thereof.
FIG. 4 is a right side view thereof.
FIG. 5 is a front view thereof; and,
FIG. 6 is a rear view thereof.
In the drawings, the surface shading formed of solid curved lines represents a lint removing surface of the claimed design. The dot-dash wavy lines are break lines. Any area in between these lines form no part of the claimed design.