Deprecate legacy_android10_support

min_sdk_version: 29 implies that the module should support Android10.

Bug: 150431944
Test: m
Merged-In: I5295f466512d45b918b6d86ecf6bca4fd29f476d
Change-Id: I5295f466512d45b918b6d86ecf6bca4fd29f476d
(cherry picked from commit 97d7b65dcc2e91e94f76640762f65ca522740e97)

Exempt-From-Owner-Approval: cp from aosp
1 file changed