readline_simple: remove obsolete documentation
The readline function does not return timed-out anymore since the
commit:

	be5d13bcb readline_simple: drop unusable u-boot legacy stuff

Signed-off-by: Gaël PORTAY <gael.portay@savoirfairelinux.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
1 parent eb06f54 commit b77b68f9257d74d72c4ed528cc0aacd398499ead
@Gaël PORTAY Gaël PORTAY authored on 7 Aug 2017
Lucas Stach committed on 15 Aug 2017
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lib/readline_simple.c