Remove CAs after the test run.

Bug: 253209191
Test: Ran CB tests.

Change-Id: I8ff79d25c729f4537069ebaabde2fdddb1e08a3a
(cherry picked from commit 3d504f2b83415e138d9123cd5a4f10f4ce5932e7)
Merged-In: I8ff79d25c729f4537069ebaabde2fdddb1e08a3a
1 file changed