Revert "SELinux changes for AppFuse"

This reverts commit 67ed4328eb4835f4404151ee4bbb93d0f4500354.

Reason for revert: Broken CTS test. See b/118642091

Bug: 118642091
Bug: 110379912
Change-Id: I5afd16bf23149c74f2740720cdd248a255ff1497
diff --git a/private/system_server.te b/private/system_server.te
index 8a0fb8e..42a89d4 100644
--- a/private/system_server.te
+++ b/private/system_server.te
@@ -740,7 +740,8 @@
 # For AppFuse.
 allow system_server vold:fd use;
 allow system_server fuse_device:chr_file { read write ioctl getattr };
-allow system_server app_fuse_file:file { read write getattr };
+allow system_server app_fuse_file:dir rw_dir_perms;
+allow system_server app_fuse_file:file { read write open getattr append };
 
 # For configuring sdcardfs
 allow system_server configfs:dir { create_dir_perms };