I claim the ornamental design for a toilet, shown and described.
FIG. 1 is a front, top, right side perspective view of a toilet showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear side view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a rear, bottom, right side, perspective view thereof.
Broken lines shown in the figures depict portions of the toilet that form no part of the claimed design; dash-dot broken lines represent boundary lines and form no part of the claimed design.