Remove unnecessary 'extern's.
Change-Id: Iba2b3fb6ff88e504f1657b915120ae43d58a1e03
diff --git a/libc/include/sys/swap.h b/libc/include/sys/swap.h
index 2d99df8..3444736 100644
--- a/libc/include/sys/swap.h
+++ b/libc/include/sys/swap.h
@@ -38,8 +38,8 @@
#define SWAP_FLAG_PRIO_MASK 0x7fff
#define SWAP_FLAG_PRIO_SHIFT 0
-extern int swapon(const char* _Nonnull, int) __INTRODUCED_IN(19);
-extern int swapoff(const char* _Nonnull) __INTRODUCED_IN(19);
+int swapon(const char* _Nonnull, int) __INTRODUCED_IN(19);
+int swapoff(const char* _Nonnull) __INTRODUCED_IN(19);
__END_DECLS