Remove unused permissions from tee

Only getattr and read are necessary for lnk_file. Open violates a new
neverallow for separating system and vendor data.

Bug: 34980020
Test: Enroll fingerprint on Taimen
Change-Id: I9434afbd5b4ecc1ead9f0ba47c7582fb5a6c6bf0

vendor/tee.te

@@ -14,4 +14,4 @@ allow tee ion_device:chr_file r_file_perms;
 r_dir_file(tee, sysfs_type)
 
 allow tee system_data_file:file { getattr read };
-allow tee system_data_file:lnk_file r_file_perms;
+allow tee system_data_file:lnk_file { getattr read };