authfs: Fix broken test

testReadWithFsverityVerification_LocalFile was broken because of binder
connection timeout. The binder connection wasn't necessary in the test
case with only local file.

Test: atest com.android.virt.fs.AuthFsHostTest
Change-Id: I5b0ae9ca8db650547ebbb53dfeaf3141a1e9f4ac
1 file changed