Clean up bpf_headers visibility

The bpf_headers no need to explicitly specify visibility for
system/netd/libnetdbpf. The libnetdbpf depends on
bpf_connectivity_headers, which exports bpf_headers already.

Bug: 202086915
Test: m
Change-Id: I09a073b14dc74511ba9dc09a89ae6e89dff51f4d
diff --git a/common/native/bpf_headers/Android.bp b/common/native/bpf_headers/Android.bp
index af8ec73..a9f6984 100644
--- a/common/native/bpf_headers/Android.bp
+++ b/common/native/bpf_headers/Android.bp
@@ -52,7 +52,6 @@
         "//system/bpf/bpfloader",
         "//system/bpf/libbpf_android",
         "//system/memory/libmeminfo",
-        "//system/netd/libnetdbpf",
         "//system/netd/server",
         "//system/netd/tests",
         "//system/netd/tests/benchmarks",