The ornamental design for golf club head, as shown and described.
FIG. 1 is a perspective view of a golf club head, showing my new design;
FIG. 2 is an enlarged front elevational view of the invention;
FIG. 3 is a rear elevational view of FIG. 2;
FIG. 4 is a left side elevational view of FIG. 2;
FIG. 5 is a right side elevational view of FIG. 2;
FIG. 6 is a top plan view of FIG. 2; and,
FIG. 7 is a bottom plan view of FIG. 2.
The broken line showing a golf club handle and shaft in FIG. 1 is included for the purpose of illustrating a golf club utilizing the golf club head of the present invention and forms no part of the claimed design.