Fix duplicated lines from merge (#8104)

variants/nrf52840/heltec_mesh_solar/variant.h

@@ -69,7 +69,6 @@ No longer populated on PCB
 
 #define WIRE_INTERFACES_COUNT 2
 
-#ifndef HELTEC_MESH_SOLAR_OLED
 #ifndef HELTEC_MESH_SOLAR_OLED
 // I2C bus 0
 #define PIN_WIRE_SDA (0 + 6)
@@ -80,8 +79,6 @@ No longer populated on PCB
 // Available on header pins, for general use
 #define PIN_WIRE1_SDA (0 + 30)
 #define PIN_WIRE1_SCL (0 + 5)
-#define PIN_WIRE1_SDA (0 + 30)
-#define PIN_WIRE1_SCL (0 + 5)
 
 /*
  * Lora radio