remove debugging prints

Author: jepler

ports/raspberrypi/common-hal/wifi/Radio.c

@@ -208,15 +208,12 @@ void common_hal_wifi_radio_stop_ap(wifi_radio_obj_t *self) {
 
 static bool connection_unchanged(wifi_radio_obj_t *self, const uint8_t *ssid, size_t ssid_len) {
     if (cyw43_tcpip_link_status(&cyw43_state, CYW43_ITF_STA) != CYW43_LINK_UP) {
-        mp_printf(&mp_plat_print, "(not connected)\n");
         return false;
     }
     if (ssid_len != self->connected_ssid_len) {
-        mp_printf(&mp_plat_print, "(length mismatch)\n");
         return false;
     }
     if (memcmp(ssid, self->connected_ssid, self->connected_ssid_len)) {
-        mp_printf(&mp_plat_print, "(ssid mismatch)\n");
         return false;
     }
     return true;
@@ -240,7 +237,6 @@ wifi_radio_error_t common_hal_wifi_radio_connect(wifi_radio_obj_t *self, uint8_t
     uint64_t deadline = start + timeout_ms;
 
     if (connection_unchanged(self, ssid, ssid_len)) {
-        mp_printf(&mp_plat_print, "re-used existing wifi connection");
         return WIFI_RADIO_ERROR_NONE;
     }