merge error index.rst

Author: celrik

index.rst

@@ -351,7 +351,6 @@ Analogue
     ADC128S102, components/sensor/adc128s102, adc128s102.png , 8-channel ADC
     ADS1115, components/sensor/ads1115, ads1115.jpg, 4-channel ADC
     ADS1118, components/sensor/ads1118, ads1118.jpg, 4-channel ADC
-    AIN4-20mA, components/sensor/ain4_20ma, ain4_20ma.jpg, 4-20mA current measurement
     CD74HC4067, components/sensor/cd74hc4067, cd74hc4067.jpg, 16-channel analog multiplexer
     MCP3008, components/sensor/mcp3008, mcp3008.jpg, 8-channel ADC
     MCP3204 / MCP3208, components/sensor/mcp3204, mcp3204.jpg, 4-channel ADC