[NET]: fix __sk_stream_mem_reclaim

__sk_stream_mem_reclaim is only called by sk_stream_mem_reclaim.

As such the check on sk->sk_forward_alloc is not needed and can be
removed.
Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/stream.c

@@ -196,7 +196,6 @@ EXPORT_SYMBOL(sk_stream_error);
 
 void __sk_stream_mem_reclaim(struct sock *sk)
 {
-	if (sk->sk_forward_alloc >= SK_STREAM_MEM_QUANTUM) {
 	atomic_sub(sk->sk_forward_alloc / SK_STREAM_MEM_QUANTUM,
 		   sk->sk_prot->memory_allocated);
 	sk->sk_forward_alloc &= SK_STREAM_MEM_QUANTUM - 1;
@@ -204,7 +203,6 @@ void __sk_stream_mem_reclaim(struct sock *sk)
 	    (atomic_read(sk->sk_prot->memory_allocated) <
 	     sk->sk_prot->sysctl_mem[0]))
 		*sk->sk_prot->memory_pressure = 0;
-	}
 }
 
 EXPORT_SYMBOL(__sk_stream_mem_reclaim);