remove unused

kernel/src/display.rs

@@ -8,10 +8,6 @@ use embassy_rp::{
     spi::{Async, Spi},
 };
 use embassy_time::{Delay, Timer};
-use embedded_graphics::{
-    draw_target::DrawTarget,
-    pixelcolor::{Rgb565, RgbColor},
-};
 use embedded_hal_bus::spi::ExclusiveDevice;
 use st7365p_lcd::ST7365P;