The ornamental design for a portion of a remotecontroller, as shown and described.
FIG. 1 is a front perspective view of a portion of a remote controller showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a rear elevational view thereof.
The difference in shading between the center horizontal region and the regions immediately adjacent thereto indicates a contrast of appearance and does not depict any particular color, texture, or material. The broken line showing of selected keys within the shaded region and the remainder of the remote controller is for environmental purposes only and forms no part of the claimed design.