--- a/security/sandbox/linux/broker/SandboxBrokerRealpath.cpp
+++ b/security/sandbox/linux/broker/SandboxBrokerRealpath.cpp
@@ -30,18 +30,16 @@
  * This is originally from:
  * android-n-mr2-preview-1-303-gccec0f4c1
  * libc/upstream-freebsd/lib/libc/stdlib/realpath.c
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
 static char sccsid[] = "@(#)realpath.c	8.1 (Berkeley) 2/16/94";
 #endif /* LIBC_SCCS and not lint */
-#include <sys/cdefs.h>
-
 #include <sys/param.h>
 #include <sys/stat.h>
 
 #include <errno.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>