drop support for pre-4.14 kernels

S had a minimum kernel requirement of 4.9,
T bumps this up to 4.14, which adds net cgroup bpf support.

It's important to ship T with this otherwise we'll be forced
into trying to somehow support 4.9 kernels with T mainline
module updates for years and years, when we no longer have
any tests of the old code paths...

Test: TreeHugger
Bug: 232017472
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I6e873f0815f176f5618278087132156c9974d6ea
diff --git a/bpf_progs/netd.c b/bpf_progs/netd.c
index fe9a871..c980047 100644
--- a/bpf_progs/netd.c
+++ b/bpf_progs/netd.c
@@ -373,8 +373,7 @@
     return BPF_NOMATCH;
 }
 
-DEFINE_BPF_PROG_KVER("cgroupsock/inet/create", AID_ROOT, AID_ROOT, inet_socket_create,
-                     KVER(4, 14, 0))
+DEFINE_BPF_PROG("cgroupsock/inet/create", AID_ROOT, AID_ROOT, inet_socket_create)
 (struct bpf_sock* sk) {
     uint64_t gid_uid = bpf_get_current_uid_gid();
     /*