e2fsprogs: remove unneeded patch

e2fsprogs: remove unneeded patch

Commit 44b5637ab2 (e2fsprogs: add a patch to link against SEM_INIT libs)
introduced a patch that effectively adds -lpthread to the link command
with libcom_err. Today the only libc with separate libpthread is glibc
that does not support static build. The generated libcom_err.so.2.1
library links with libpthread with or without this patch. Drop this
patch.

Cc: Daniel Mack <daniel@zonque.org>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>