I claim the ornamental design for a toilet, as shown and described.
FIG. 1 is a top, front, left perspective view of a toilet;
FIG. 2 is a right side elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The ornamental design which is claimed is shown in solid lines in the drawings. In the drawings, the broken lines depict environmental subject matter only and form no part of the claimed design. The dot and dashed lines indicate a boundary between the claimed and unclaimed portions of the design.