Revert "gc includes"

needed on FreeBSD

This reverts commit 19586003.

vmod/vmod_blob.h

@@ -31,6 +31,7 @@
 /* vrt.h must be included before this header (for struct strands). */
 
 #include <stdlib.h>
+#include <sys/types.h>
 
 enum encoding {
 	__INVALID_ENCODING = 0,

vmod/vmod_debug_dyn.c

@@ -33,6 +33,7 @@
 #include <netdb.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/socket.h>
 #include <sys/stat.h>
 #include <unistd.h>
 

vmod/vmod_unix_cred_compat.h

@@ -27,6 +27,7 @@
  *
  */
 
+#include <sys/types.h>
 #include <sys/socket.h>
 
 #if defined(HAVE_GETPEEREID)