Don't try to create user when on a single-user device.

Bug: 37131625
Test: cts-tradefed run cts-dev --skip-device-info --skip-preconditions --skip-system-status-check com.android.compatibility.common.tradefed.targetprep.NetworkConnectivityChecker -a armeabi-v7a -l INFO -m CtsDevicePolicyManagerTestCases -t com.android.cts.devicepolicy.DeviceAdminServiceProfileOwnerTest
Change-Id: I98c7cefd7097fd63c319b7c5ead124bc46e00fe4
1 file changed