Revert "db845c: Add support for cache partition" am: 04e4b2fb76

Original change: https://android-review.googlesource.com/c/device/linaro/dragonboard/+/1550664

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ie3780e3dd8e67a0ffef9fdd118d54ec5d1fa472f