Neverallow vendor_init from writing system_data_file

This neverallow exception is not needed.

Bug: 62875318
Test: build walleye, bullhead
Change-Id: Ide37ef9fe7a0e1cc4a1809589f78052007698cf5

public/domain.te

@@ -1040,7 +1040,6 @@ neverallow {
   -system_server
   -system_app
   -init
-  -vendor_init
   -installd # for relabelfrom and unlink, check for this in explicit neverallow
   with_asan(`-asan_extract')
 } system_data_file:file no_w_file_perms;