The ornamental design for a golftee, as shown and described.
FIG. 1 is a top perspective view of a golf tee showing my new design;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a side view thereof;
FIG. 4 is a top view thereof; and,
FIG. 5 is a bottom view thereof.
The broken lines showing a golf ball in FIG. 2 and FIG. 3 are included for the purpose of illustrating the invention in use, and form no part of the claimed design.