remove old type deserialization aliases

These date from late 2016 and early 2017,
so we're not likely to encounter them any more.

Change-Id: I635c628eb2df47cb8b5330162989c818c01c3684
Reviewed-on: https://skia-review.googlesource.com/c/163989
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
1 file changed