selftests/bpf: Remove bpf_tcp_helpers.h usages from other misc bpf tcp-cc tests

This patch removed the final few bpf_tcp_helpers.h usages
in some misc bpf tcp-cc tests and replace it with
bpf_tracing_net.h (i.e. vmlinux.h)

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20240509175026.3423614-9-martin.lau@linux.dev
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

tools/testing/selftests/bpf/progs/bpf_dctcp_release.c

@@ -1,14 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2021 Facebook */
 
-#include <stddef.h>
-#include <linux/bpf.h>
-#include <linux/types.h>
-#include <linux/stddef.h>
-#include <linux/tcp.h>
+#include "bpf_tracing_net.h"
 #include <bpf/bpf_helpers.h>
 #include <bpf/bpf_tracing.h>
-#include "bpf_tcp_helpers.h"
 
 char _license[] SEC("license") = "GPL";
 const char cubic[] = "cubic";

tools/testing/selftests/bpf/progs/bpf_tcp_nogpl.c

@@ -1,10 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 
-#include <linux/bpf.h>
-#include <linux/types.h>
-#include <bpf/bpf_helpers.h>
+#include "bpf_tracing_net.h"
 #include <bpf/bpf_tracing.h>
-#include "bpf_tcp_helpers.h"
 
 char _license[] SEC("license") = "X";