upb: delete the aliases for upb:hash, upb:lex, upb:reflection_internal

PiperOrigin-RevId: 594992691
diff --git a/python/BUILD.bazel b/python/BUILD.bazel
index 8967bac..325a56b 100644
--- a/python/BUILD.bazel
+++ b/python/BUILD.bazel
@@ -195,13 +195,13 @@
         "//upb:base",
         "//upb:descriptor_upb_proto_reflection",
         "//upb:eps_copy_input_stream",
-        "//upb:hash",
         "//upb:message",
         "//upb:message_copy",
         "//upb:port",
         "//upb:reflection",
         "//upb:text",
         "//upb:wire_reader",
+        "//upb/hash",
         "//upb/util:compare",
         "//upb/util:def_to_proto",
         "//upb/util:required_fields",