rainbowio: No need for the ternary here

.. mp_obj_get_float handles the case where the arg is an int already.

This saves 12 bytes of code size on trinket_m0.

Author: jepler

shared-bindings/rainbowio/__init__.c

@@ -37,7 +37,8 @@
 //|     ...
 //|
 STATIC mp_obj_t rainbowio_colorwheel(mp_obj_t n) {
-    return MP_OBJ_NEW_SMALL_INT(colorwheel(mp_obj_is_small_int(n) ? MP_OBJ_SMALL_INT_VALUE(n) : mp_obj_get_float(n)));
+    mp_float_t f = mp_obj_get_float(n);
+    return MP_OBJ_NEW_SMALL_INT(colorwheel(f));
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(rainbowio_colorwheel_obj, rainbowio_colorwheel);