Removed an unused header include

That file doesn't exist at least jb-gce-dev

Change-Id: I4a3cd97f2ee071ae74cb166baf38057671d76fef
diff --git a/uidswap.c b/uidswap.c
index ce7a00d..95f5902 100644
--- a/uidswap.c
+++ b/uidswap.c
@@ -30,7 +30,6 @@
 
 #ifdef ANDROID
 #include <private/android_filesystem_config.h>
-#include <sys/capability.h>
 #include <sys/prctl.h>
 #endif