Commit c13ee2a4 ("tcp: reindent two spots after prequeue removal")
removed code in tcp_data_queue().

We can go a little farther, removing an always true test,
and removing initializers for fragstolen and eaten variables.
Signed-off-by: NEric Dumazet <edumazet@google.com>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>