"Phase Locked" Waveform: fix significant jitter, that stresses servos and is clearly audible in Tone output

cores/esp8266/Tone.cpp

@@ -25,10 +25,6 @@
 #include "core_esp8266_waveform.h"
 #include "user_interface.h"
 
-// Which pins have a tone running on them?
-static uint32_t _toneMap = 0;
-
-
 static void _startTone(uint8_t _pin, uint32_t high, uint32_t low, uint32_t duration) {
  if (_pin > 16) {
  return;
@@ -42,9 +38,7 @@ static void _startTone(uint8_t _pin, uint32_t high, uint32_t low, uint32_t durat
  duration = microsecondsToClockCycles(duration * 1000UL);
  duration += high + low - 1;
  duration -= duration % (high + low);
- if (startWaveformClockCycles(_pin, high, low, duration)) {
- _toneMap |= 1 << _pin;
- }
+ startWaveformClockCycles(_pin, high, low, duration);
 }
 
 
@@ -86,6 +80,5 @@ void noTone(uint8_t _pin) {
  return;
  }
  stopWaveform(_pin);
- _toneMap &= ~(1 << _pin);
  digitalWrite(_pin, 0);
 }