bpf: remove OpenBSD guards

libpcap bpf functions are supported now.

(cherry picked from commit 643e674cb2)

src/util-bpf.c

@@ -51,8 +51,6 @@ void ConfSetBPFFilter(
     }
 }
 
-#if !defined __OpenBSD__
-
 /** protect bpf filter build, as it is not thread safe */
 static SCMutex bpf_set_filter_lock = SCMUTEX_INITIALIZER;
 
@@ -97,5 +95,3 @@ int SCBPFCompile(int snaplen_arg, int linktype_arg, struct bpf_program *program,
 
     return (ret);
 }
-
-#endif /* Not __OpenBSD__ */

src/util-bpf.h

@@ -29,13 +29,10 @@
 void ConfSetBPFFilter(
         ConfNode *if_root, ConfNode *if_default, const char *iface, const char **bpf_filter);
 
-#if !defined __OpenBSD__
-
 int SCBPFCompile(int snaplen_arg, int linktype_arg, struct bpf_program *program,
                  const char *buf, int optimize, uint32_t mask,
                  char *errbuf, size_t errbuf_len);
 
 void SCBPFFree(struct bpf_program *program);
 
-#endif /* Not __OpenBSD__ */
 #endif /* __UTIL_BPF_H__ */