The ornamental design for a golfdevice, as shown and described.
FIG. 1 is a perspective view of a golf device;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a rear elevation view thereof; and,
FIG. 4 is a right side elevation view thereof, the left side elevation view being the same.
The broken away area in the drawings indicates the appearance of any portion of the article between the break-lines forms no part of the claimed design. The broken lines disclosed on the drawings represent break-lines and form no part of the claimed design. The portions of the Figures shown in dashed lines are included for environmental purposes only and form no part of the claimed design.