I claim the ornamental design for a removable drawer-divider for suitcase, as shown and described.
FIG. 1 is a perspective view of a removable drawer-divider for suitcase showing my new design;
FIG. 2 is a top plan view thereof, the bottom plan view being a mirror image thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image thereof; and,
FIG. 5 is a perspective view showing the removable drawer-divider for suitcase in use; the broken lines depict environmental structure for illustrative purposes only and form no part of the claimed design.