The local function vcard_emul_alloc_arrays always returned PR_TRUE.
Therefore cppcheck complained about code which handled the
non-existent PR_FALSE case.

Remove the function's return value and the dead code.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>