Move vendor_kernel_modules to public.

Bug: 166559473
Bug: 183135316
Test: build and boot
Change-Id: If3bc389d4ae23ff11899f42add56f2c725f40ac6
Merged-In: I21d5c60c63fd0cb46e074d76934dccf53819683d
diff --git a/common/file.te b/common/file.te
index 3f4f23a..7dc080d 100644
--- a/common/file.te
+++ b/common/file.te
@@ -1,7 +1,4 @@
 type persist_file, file_type, vendor_persist_type;
 type firmware_file, file_type, contextmount_type, vendor_file_type;
 
-# kernel modules
-type vendor_kernel_modules, vendor_file_type, file_type;
-
 allow firmware_file self:filesystem associate;