Remove unused system properties

Properties ro.config.license_path and ro.config.manual_path are not set
from anywhere but only from a test.

Bug: N/A
Test: mma -j
Change-Id: I651405f3a201f5129bf37059e96e7bcc5efa73bf
(cherry picked from commit 31e37683f0e859d355d0bbb57500498cc0de3962)
3 files changed