Replace $this->getSettings() with $this->settings

Authored by thiemowmde on Sep 13 2017, 2:09 PM.

Description

Replace $this->getSettings() with $this->settings

I find it very confusing if half of the code just accesses the private
property, but a few places call the getter that does the exact same.

The getter is for access from the outside.

Bug: T121274
Change-Id: Idbcebe4249fe4221d8f6bc0a6d3170ab1a257319