pkg/arduino_adafruit_sensor: fix dependencies

This fixes the dependencies of the `arduino_adafruit_sensor` package,
which previously relied on the `arduino` feature. This feature no longer
exists, as it was split into more fine granular features. However, the
module should never have used that feature directly in the first place,
but rather just use the arduino module. This in turn depends on the
correct features.

pkg/arduino_adafruit_sensor/Makefile.dep

@@ -1,4 +1,3 @@
-FEATURES_REQUIRED += arduino
 FEATURES_REQUIRED += cpp
 
 USEMODULE += arduino