vold.te: drop allow vold toolbox_exec:file rx_file_perms;

auditallow says not needed.

Change-Id: Iafa048377e159ca3c7cc1f31653002c41ef9ef2b

vold.te

@@ -24,9 +24,6 @@ allow vold shell_exec:file rx_file_perms;
 typeattribute vold mlstrustedsubject;
 allow vold self:process setfscreate;
 allow vold system_file:file x_file_perms;
-# XXX Run toolbox.  Might not be needed.
-allow vold toolbox_exec:file rx_file_perms;
-auditallow vold toolbox_exec:file rx_file_perms;
 allow vold block_device:dir create_dir_perms;
 allow vold device:dir write;
 allow vold devpts:chr_file rw_file_perms;