Remove rild access to proc label.

Bug: 65643247
Test: device boots without denials from rild to proc.
Change-Id: I142a228347ef07266cb612e99c90fb5ec187988a

public/rild.te

@@ -39,7 +39,6 @@ allow rild self:netlink_kobject_uevent_socket create_socket_perms_no_ioctl;
 # Access to wake locks
 wakelock_use(rild)
 
-r_dir_file(rild, proc)
 r_dir_file(rild, proc_net)
 r_dir_file(rild, sysfs_type)
 r_dir_file(rild, system_file)