Encourage pull requests instead of external components

Author: claude

content/components/sensor/bmi270.md

@@ -13,10 +13,9 @@ sensor to work.
 
 The BMI270 is a low-power 6-axis inertial measurement unit (IMU) from Bosch Sensortec, designed for wearables and other battery-powered applications. It offers improved power efficiency and features compared to its predecessor, the BMI160.
 
-This component only does some basic filtering and no calibration. Due to the complexity of this sensor and the amount
-of possible configuration options, you should probably create an [external component](/components/external_components)
-by copying and modifying the existing code if you want a specific new feature. Supporting all possible use cases would
-be quite hard.
+This component only does some basic filtering and no calibration. If you need additional configuration options
+or features, please consider adding them to the component and submitting a pull request to help improve ESPHome
+for everyone.
 
 ```yaml
 # Example configuration entry