The ornamental design for a commode, as shown and described.
FIG. 1 is an isometric view of a commode showing my new design; the broken lines which define the bounds of the claimed design form no part thereof; and,
FIG. 2 is an elevation view thereof, shown broken away for clarity of illustration thereof.
The broken lines showing of the base and tank of a commode are for illustrative purposes and form no part of the claimed design.