remove unneeded ticklabel conversions * scripts/plot/util/private/__go_draw_axes__.m (do_tics_1): Remove unneeded conversion of variable labels. Conversion is already done in function do_tics with subfunction ticklabel_to_cell. * scripts/plot/util/private/__go_draw_axes__.m (ticklabel_to_cell): Simplify function, since most conversions are done in graphics.cc, See bug #34906 for reference.