Remove unused target android.test.mock.sdk

Bug: 30188076
Test: make checkbuild

Change-Id: I9b613969425e6c4d8700f6275484d6452a3cc3af
Merged-In: I9b613969425e6c4d8700f6275484d6452a3cc3af
(cherry picked from commit 10d0658bf020197c16264a1da4637e0d20ee6445)
1 file changed