`doro67/rgb`: reduce firmware size (#24169)

keyboards/doro67/rgb/keyboard.json

@@ -39,8 +39,6 @@
         "pixel_rain": true,
         "pixel_flow": true,
         "pixel_fractal": true,
-        "typing_heatmap": true,
-        "digital_rain": true,
         "solid_reactive_simple": true,
         "solid_reactive": true,
         "solid_reactive_wide": true,