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
1 file changed
tree: dd68f2260d6376205122365fa08b2c50f89bae43
  1. client-libs/
  2. common/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING