tcp: remove tcp_send_partial()

This function does not exist.

Signed-off-by: Eric Dumazet <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

include/net/tcp.h

···
 		 unsigned int mss_now, gfp_t gfp);
 
 void tcp_send_probe0(struct sock *);
-void tcp_send_partial(struct sock *);
 int tcp_write_wakeup(struct sock *, int mib);
 void tcp_send_fin(struct sock *sk);
 void tcp_send_active_reset(struct sock *sk, gfp_t priority);