Deprecate /factory

After Treblized, AOSP do not handle /factory folder. Also, AOSP
does not mount any partition to /factory. /factory has no possibility
to have any content. For factory purpose, it can be implemented in
vendor.

Bug: 177280838
Test: na
Change-Id: I0a2537336c2ef1efbad3e4f9e876aeaa607bc737
diff --git a/init/property_service.cpp b/init/property_service.cpp
index e71c386..64d4edc 100644
--- a/init/property_service.cpp
+++ b/init/property_service.cpp
@@ -957,8 +957,6 @@
     load_properties_from_partition("odm", /* support_legacy_path_until */ 28);
     load_properties_from_partition("product", /* support_legacy_path_until */ 30);
 
-    load_properties_from_file("/factory/factory.prop", "ro.*", &properties);
-
     if (access(kDebugRamdiskProp, R_OK) == 0) {
         LOG(INFO) << "Loading " << kDebugRamdiskProp;
         load_properties_from_file(kDebugRamdiskProp, nullptr, &properties);