fix: consolidate preprocessor directives for I2C priority function

Author: dido18

src/Modulino.cpp

@@ -13,8 +13,7 @@ ModulinoColor GREEN(0, 255, 0);
 ModulinoColor VIOLET(255, 0, 255);
 ModulinoColor WHITE(255, 255, 255);
 
-#if __has_include("Arduino_LED_Matrix.h")
-#if defined(ARDUINO_UNOR4_WIFI)
+#if __has_include("Arduino_LED_Matrix.h") && defined(ARDUINO_UNOR4_WIFI)
 void __increaseI2CPriority() {
     for (int i = 0; i < 96; i++) {
         if (R_ICU->IELSR[i] == BSP_PRV_IELS_ENUM(EVENT_IIC0_TXI)) {
@@ -25,7 +24,6 @@ void __increaseI2CPriority() {
         }
     }
 }
-#endif
 #else
 void __increaseI2CPriority() {}
 #endif