Make _is_rtc_configured flag available for all platforms

Author: pennam

src/utility/time/TimeService.cpp

@@ -52,9 +52,7 @@ static time_t const EPOCH = 0;
 
 TimeService::TimeService()
 : _con_hdl(nullptr)
-#if defined (ARDUINO_ARCH_SAMD) || defined (ARDUINO_ARCH_MBED)
 , _is_rtc_configured(false)
-#endif
 , _is_tz_configured(false)
 , _timezone_offset(0)
 , _timezone_dst_until(0)

src/utility/time/TimeService.h

@@ -56,9 +56,7 @@ class TimeService
 private:
 
   ConnectionHandler * _con_hdl;
-#if defined (ARDUINO_ARCH_SAMD) || defined (ARDUINO_ARCH_MBED)
   bool _is_rtc_configured;
-#endif
   bool _is_tz_configured;
   long _timezone_offset;
   unsigned long _timezone_dst_until;