Randy Dunlap and Boris B. Zhmurov reported build failure of
rfcomm/tty.c since 2.6.20.17. Marcel Holtmann confirmed that
the following patch was inappropriate for this kernel. Remove
it.

This reverts commit 8c25e9c9.

Cc: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>