diff --git a/esphome/components/adc/adc_sensor.h b/esphome/components/adc/adc_sensor.h
index 926c75ea15..d267a354d0 100644
--- a/esphome/components/adc/adc_sensor.h
+++ b/esphome/components/adc/adc_sensor.h
@@ -22,31 +22,6 @@ namespace esphome {
 namespace adc {
 
 #ifdef USE_ESP32
-#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
-// Map old channel names to new ones for compatibility
-#define ADC1_CHANNEL_0 ADC_CHANNEL_0
-#define ADC1_CHANNEL_1 ADC_CHANNEL_1
-#define ADC1_CHANNEL_2 ADC_CHANNEL_2
-#define ADC1_CHANNEL_3 ADC_CHANNEL_3
-#define ADC1_CHANNEL_4 ADC_CHANNEL_4
-#define ADC1_CHANNEL_5 ADC_CHANNEL_5
-#define ADC1_CHANNEL_6 ADC_CHANNEL_6
-#define ADC1_CHANNEL_7 ADC_CHANNEL_7
-#define ADC1_CHANNEL_MAX ADC_CHANNEL_MAX
-
-#define ADC2_CHANNEL_0 ADC_CHANNEL_0
-#define ADC2_CHANNEL_1 ADC_CHANNEL_1
-#define ADC2_CHANNEL_2 ADC_CHANNEL_2
-#define ADC2_CHANNEL_3 ADC_CHANNEL_3
-#define ADC2_CHANNEL_4 ADC_CHANNEL_4
-#define ADC2_CHANNEL_5 ADC_CHANNEL_5
-#define ADC2_CHANNEL_6 ADC_CHANNEL_6
-#define ADC2_CHANNEL_7 ADC_CHANNEL_7
-#define ADC2_CHANNEL_8 ADC_CHANNEL_8
-#define ADC2_CHANNEL_9 ADC_CHANNEL_9
-#define ADC2_CHANNEL_MAX ADC_CHANNEL_MAX
-#endif  // ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 0, 0)
-
 // clang-format off
 #if (ESP_IDF_VERSION_MAJOR == 4 && ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 4, 7)) || \
     (ESP_IDF_VERSION_MAJOR == 5 && \