[Bugfix] LVGL bindings wrong offset math (#21147)

quantum/painter/lvgl/qp_lvgl.c

@@ -112,9 +112,6 @@ bool qp_lvgl_attach(painter_device_t device) {
     uint16_t panel_width, panel_height, offset_x, offset_y;
     qp_get_geometry(selected_display, &panel_width, &panel_height, NULL, &offset_x, &offset_y);
 
-    panel_width -= offset_x;
-    panel_height -= offset_y;
-
     // Setting up display driver
     static lv_disp_drv_t disp_drv;     /*Descriptor of a display driver*/
     lv_disp_drv_init(&disp_drv);       /*Basic initialization*/