Use enabled: false to disable errorprone

Enabled: false is more performant than -XepDisableAllChecks,
as normally the module is built twice, once with and once
without errorprone. Enabled: false will entirely remove
the second build.

Bug: 190944875
Bug: 72714520
Change-Id: Ie393f41a33e59dc4fd36b98ca2fd87f53c0f9785
Test: Presumbits