Remove FPGA bitstream based defines from variant

Author: sandeepmistry

variants/mkrvidor4000/variant.h

@@ -121,13 +121,6 @@ static const uint8_t SCK1  = PIN_SPI1_SCK;
 #define SDCARD_SCK_PIN  PIN_SPI1_SCK
 #define SDCARD_SS_PIN   PIN_SPI1_SS
 
-// NINA signals
-#define SPIWIFI              SPIEx
-#define FPGA_NINA_GPIO0      (64 + 10)   // WM_PIO27 -> NiNa GPIO0 -> FPGA N9
-#define FPGA_SPIWIFI_RESET   (64 + 0)    // WM_RESET -> NiNa RESETN -> FPGA R1
-#define FPGA_SPIWIFI_ACK     (64 + 5)    // WM_PIO7  -> NiNa GPIO33 -> FPGA P6
-#define FPGA_SPIWIFI_SS      (64 + 11)   // WM_PIO28 -> NiNa GPIO5 -> FPGA N11
-
 // Wire Interfaces
 // ---------------
 #define WIRE_INTERFACES_COUNT 1