[revert] [patchv4] Workaround gdbserver<7.7 for setfs

[Jan Kratochvil]

Hi,

it no longer transferred any files with old gdbserver after this commit.
(I do not have setup a regression testsuite for old gdbserver.)

Therefore reverting it - as it may be breaking currently working
functionalities with old gdbservers - and the workaround may get reimplemented
some other way later.


Jan
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From: Jan Kratochvil <jan.kratochvil@redhat.com>
Subject: [PATCH] Revert the previous commit adding unknown_v_replies_ok.
Date: Wed, 6 Apr 2016 21:05:16 +0200
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