Don't check for network access before grabbing the the current head,
cloning, or updating a clone when the protocol is 'file'.
(Bitbake rev: d5847bc5254b9d2f28a6b574f6157d1286add27c)
Signed-off-by: Jeff Polk <jeff.polk@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>