Fix BadSocketPair for open source.
Fix BadSocketPair for open source.

BadSocketPair test will return several errnos (EPREM, ESOCKTNOSUPPORT,
EAFNOSUPPORT) meaning the test is just too specific. Checking the syscall
fails is appropriate.

PiperOrigin-RevId: 328813071

google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor,google/gvisor