The ornamental design for a toilet, as shown and described.
FIG. 1 is a front view of a toilet;
FIG. 2 is a right side view of the toilet of FIG. 1;
FIG. 3 is a left side view of the toilet of FIG. 1;
FIG. 4 is a rear view of the toilet of FIG. 1;
FIG. 5 is a bottom view of the toilet of FIG. 1;
FIG. 6 is a top view of the toilet of FIG. 1;
FIG. 7 is a cross-sectional view of the toilet of FIG. 1; and,
FIG. 8 is a perspective view of the toilet of FIG. 1.
The broken lines shown in the drawings views are included for the purpose of illustrating a portion of the toilet that forms no part of the claimed design.