Remove unused non-public method.

Bug: 165552960
Test: builds
Change-Id: I9febd312e34d6114131ab0c888484edcf570ad4f
Merged-In: I9febd312e34d6114131ab0c888484edcf570ad4f
(cherry picked from commit 812a2052fb4b1f67b87f8886bafad7a9c03d2574)
3 files changed