tty: n_smux: Remove redundant variable set
tty: n_smux: Remove redundant variable set

Remove duplicate setting of the pkt.flags field which is harmless, but
redundant.

Change-Id: I6d2579216a03c4ca5ca3b06092ed8a9208d3e891
Signed-off-by: Eric Holmberg <5000aa55685d659e1f7f26ece526f9c7021ab484@codeaurora.org>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas