Revert espressif#5861

Author: Jason2866

Diff for: cores/esp32/esp32-hal-ledc.c

@@ -17,7 +17,6 @@
 #include "freertos/task.h"
 #include "freertos/semphr.h"
 #include "esp32-hal-matrix.h"
-#include "soc/soc_caps.h"
 #include "soc/ledc_reg.h"
 #include "soc/ledc_struct.h"
 #include "driver/periph_ctrl.h"
@@ -332,21 +331,3 @@ double ledcChangeFrequency(uint8_t chan, double freq, uint8_t bit_num)
     double res_freq = _ledcSetupTimerFreq(chan, freq, bit_num);
     return res_freq;
 }
-
-static int8_t pin_to_channel[SOC_GPIO_PIN_COUNT] = { 0 };
-static int cnt_channel = SOC_LEDC_CHANNEL_NUM;
-void analogWrite(uint8_t pin, int value) {
-  // Use ledc hardware for internal pins
-  if (pin < SOC_GPIO_PIN_COUNT) {
-    if (pin_to_channel[pin] == 0) {
-      if (!cnt_channel) {
-          log_e("No more analogWrite channels available! You can have maximum %u", SOC_LEDC_CHANNEL_NUM);
-          return;
-      }
-      pin_to_channel[pin] = cnt_channel--;
-      ledcAttachPin(pin, cnt_channel);
-      ledcSetup(cnt_channel, 1000, 8);
-    }
-    ledcWrite(pin_to_channel[pin] - 1, value);
-  }
-}