Revert "Relax neverallows for vendor to use /system/bin/sh"

Revert submission 2964802-sh_path

Reason for revert: <b/325569171>

Reverted changes: /q/submissionid:2964802-sh_path

Change-Id: I89e635e742d8f4f8a79afa1bb2646c7621705994

public/domain.te

@@ -913,9 +913,6 @@ full_treble_only(`
         -crash_dump_exec
         -netutils_wrapper_exec
         userdebug_or_eng(`-tcpdump_exec')
-        # Vendor components still can invoke shell commands via /system/bin/sh
-        -shell_exec
-        -toolbox_exec
     }:file { entrypoint execute execute_no_trans };
 ')
 
@@ -996,9 +993,6 @@ full_treble_only(`
     -task_profiles_api_file
     -task_profiles_file
     userdebug_or_eng(`-tcpdump_exec')
-    # Vendor components still can invoke shell commands via /system/bin/sh
-    -shell_exec
-    -toolbox_exec
   }:file *;
 ')
 

public/hal_neverallows.te

@@ -85,13 +85,7 @@ neverallow {
   halserverdomain
   -hal_dumpstate_server
   -hal_telephony_server
-} {
-  file_type
-  fs_type
-  # May invoke shell commands via /system/bin/sh
-  -shell_exec
-  -toolbox_exec
-}:file execute_no_trans;
+} { file_type fs_type }:file execute_no_trans;
 # Do not allow a process other than init to transition into a HAL domain.
 neverallow { domain -init } halserverdomain:process transition;
 # Only allow transitioning to a domain by running its executable. Do not