selftests/bpf: remove useless bpf_trace_printk

sockmap test is using two programs that use bpf_trace_printk()
which prints into trace_pipe, but nothing is reading it.
Remove it.

Fixes: 6f6d33f3b3d0 ("bpf: selftests add sockmap tests")
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

tools/testing/selftests/bpf/sockmap_parse_prog.c

@@ -29,9 +29,6 @@ int bpf_prog1(struct __sk_buff *skb)
 	 * fields.
 	 */
 	d[7] = 1;
-
-	bpf_printk("parse: data[0] = (%u): local_port %i remote %i\n",
-		   d[0], lport, bpf_ntohl(rport));
 	return skb->len;
 }
 

tools/testing/selftests/bpf/sockmap_verdict_prog.c

@@ -58,8 +58,6 @@ int bpf_prog2(struct __sk_buff *skb)
 	d[6] = 0xe;
 	d[7] = 0xf;
 
-	bpf_printk("verdict: data[0] = redir(%u:%u)\n", map, sk);
-
 	if (!map)
 		return bpf_sk_redirect_map(skb, &sock_map_rx, sk, 0);
 	return bpf_sk_redirect_map(skb, &sock_map_tx, sk, 0);