Revert "USB: quatech2: only write to the tty if the port is open."
Revert "USB: quatech2: only write to the tty if the port is open."

This reverts commit 27b351c5546008c640b3e65152f60ca74b3706f1.  It caused
problems with the build.

Reported-by: Stephen Rothwell <4bf0fb350827ce8d86875e76c923a478597c3cef@canb.auug.org.au>
Cc: Bill Pemberton <6208e3c588e4690c7dfac5e95777d6a902c5fb27@viridian.itc.virginia.edu>
Cc: Jiri Slaby <dfbf39eb5bf303a3db5454d815cb8c8888cbadf9@suse.cz>
Signed-off-by: Greg Kroah-Hartman <4645f7897fd33786a2ee1264d590b3c400559d85@linuxfoundation.org>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs