Duplicate code in library files - potential refactor needed

The actions failure with details about duplicated sections is [here](https://github.com/adafruit/Adafruit_CircuitPython_LSM6DS/runs/2031429701?check_suite_focus=true#step:11:32)

We want to avoid having duplicated code if possible. One possible way to fix might be to move duplicate code into a shared super class.

Start with the duplicated sections reported in the linked GitHub Actions run and identify the affected library files. Compare the repeated behavior before deciding whether a shared superclass is appropriate. Done means the duplicate-code check passes and the library's existing behavior remains intact.

Written by the indexing model from the issue text.