Assert that RC4 TLS/SSL cipher suites are not used by default.

RC4 has been deprecated for a while. It's now time to no longer use it
by default. Mozilla Firefox and Chrome web browsers have already made
the leap.

This is a follow-up to 9a7b700a0f4d5bb1967b71e114b935b5b2ac7c12 which
asserts that TLS_RSA_WITH_RC4_128_SHA is disabled for the same
reasons.

Bug: 24898327
Change-Id: Ieedb176e91ead0bb95c9a2a3af04c9547de06221
1 file changed