remove explicit HSPI call as it breaks 8266 builds

src/hm/hmRadio.h

@@ -101,7 +101,7 @@ class HmRadio {
             // change the byte order of the DTU serial number and append the required 0x01 at the end
             DTU_RADIO_ID = ((uint64_t)(((dtuSn >> 24) & 0xFF) | ((dtuSn >> 8) & 0xFF00) | ((dtuSn << 8) & 0xFF0000) | ((dtuSn << 24) & 0xFF000000)) << 8) | 0x01;
 
-            SPIClass* mSpi = new SPIClass(HSPI);
+            SPIClass* mSpi = new SPIClass();
             mSpi->begin(sclk, miso, mosi, cs);
             mNrf24.begin(mSpi, ce, cs);
             mNrf24.setRetries(3, 15); // 3*250us + 250us and 15 loops -> 15ms