change no-op defines from '1' to ''.

Author: marcmerlin

boarddefs.h

@@ -560,12 +560,12 @@
 // way to do this on ESP32 is using the RMT built in driver like in this incomplete library below
 // https://github.com/ExploreEmbedded/ESP32_RMT
 #elif defined(IR_TIMER_USE_ESP32)
-#define TIMER_RESET 1
-#define TIMER_ENABLE_PWM 1
+#define TIMER_RESET  
+#define TIMER_ENABLE_PWM  
 #define TIMER_DISABLE_PWM Serial.println("IRsend not implemented for ESP32 yet");
-#define TIMER_ENABLE_INTR 1
-#define TIMER_DISABLE_INTR 1
-#define TIMER_INTR_NAME 1
+#define TIMER_ENABLE_INTR  
+#define TIMER_DISABLE_INTR  
+#define TIMER_INTR_NAME  
 
 //---------------------------------------------------------
 // Unknown Timer