Fix: use #ifdef ARDUINO_GIGA only for SPI1 (as in all other examples).

Author: aentinger

Diff for: examples/iperf-client/iperf-client.ino

@@ -41,13 +41,6 @@ static T1SMacSettings const t1s_mac_settings{MAC_PROMISCUOUS_MODE, MAC_TX_CUT_TH
  * GLOBAL VARIABLES
  **************************************************************************************/
 
-#ifdef ARDUINO_GIGA
-auto const tc6_io = new TC6::TC6_Io
-  ( SPI1
-  , CS_PIN
-  , RESET_PIN
-  , IRQ_PIN);
-#else
 auto const tc6_io = new TC6::TC6_Io(
 #ifdef ARDUINO_GIGA
   SPI1
@@ -57,7 +50,6 @@ auto const tc6_io = new TC6::TC6_Io(
   , CS_PIN
   , RESET_PIN
   , IRQ_PIN);
-#endif
 auto const tc6_inst = new TC6::TC6_Arduino_10BASE_T1S(tc6_io);
 
 /**************************************************************************************