Fix X509CertSelectorTest.

According to rfc3280, when using URI as a NameConstraint it's GeneralName should not
contain schema. Details in section 4.2.1.11 of
https://www.ietf.org/rfc/rfc3280.txt

Change-Id: I69bed45508c4091a7a13e70832fe63c77df538a8
1 file changed