Drop atomic include, align function type syntax.

Author: dok-net

cores/esp8266/Schedule.cpp

@@ -24,7 +24,7 @@ struct recurrent_fn_t
     recurrent_fn_t* mNext = nullptr;
     mRecFuncT mFunc;
     esp8266::polledTimeout::periodicFastUs callNow;
-    std::function<bool()> alarm = nullptr;
+    std::function<bool(void)> alarm = nullptr;
     recurrent_fn_t(esp8266::polledTimeout::periodicFastUs interval) : callNow(interval) { }
 };
 
@@ -86,7 +86,7 @@ bool schedule_function (const std::function<void(void)>& fn)
 }
 
 bool schedule_recurrent_function_us(const std::function<bool(void)>& fn,
-    uint32_t repeat_us, std::function<bool()> alarm)
+    uint32_t repeat_us, std::function<bool(void)> alarm)
 {
     assert(repeat_us < decltype(recurrent_fn_t::callNow)::neverExpires); //~26800000us (26.8s)
 

cores/esp8266/Schedule.h

@@ -2,7 +2,6 @@
 #define ESP_SCHEDULE_H
 
 #include <functional>
-#include <atomic>
 
 #define SCHEDULED_FN_MAX_COUNT 32
 
@@ -62,7 +61,7 @@ void run_scheduled_functions();
 // * If alarm is used, anytime during scheduling when it returns true,
 //   any remaining delay from repeat_us is disregarded, and fn is executed.
 bool schedule_recurrent_function_us(const std::function<bool(void)>& fn,
-    uint32_t repeat_us, std::function<bool()> alarm = nullptr);
+    uint32_t repeat_us, std::function<bool(void)> alarm = nullptr);
 
 // Test recurrence and run recurrent scheduled functions.
 // (internally called at every `yield()` and `loop()`)