Don't check ABIs in SecondArchIsTranslated

SecondArchIsTranslated is only used to determine whether or not to
dexpreopt the second arch, so it should return false for the case
where the primary and secondary arches are X86_64 and X86, but the
primary arch also lists an Arm ABI.

Bug: 124711830
Test: m on failing build
Change-Id: I6afc2fdda466e0c406dbeada2e9c3df2bb6853bf