property_service: drop unused header

Remove android_filesystem_config.h since it was not being used.

Change-Id: I691513d50a3fdb7563a63aee7551137ba983825c
Bug: 27999086
Signed-off-by: William Roberts <william.c.roberts@intel.com>
diff --git a/init/property_service.cpp b/init/property_service.cpp
index 8c95f15..c617dc6 100644
--- a/init/property_service.cpp
+++ b/init/property_service.cpp
@@ -41,7 +41,6 @@
 #include <sys/types.h>
 #include <netinet/in.h>
 #include <sys/mman.h>
-#include <private/android_filesystem_config.h>
 
 #include <selinux/selinux.h>
 #include <selinux/label.h>