Move thirdparty/openjpeg onto the correct SHA.

Now we use the openjpeg repo automatically generated from the
gs repo. Diffing the two shows mostly only whitespace diffs,
but just a couple of fixes too.

Also change Makefile logic not to check for a file that isn't
there any more.

1 files changed, 0 insertions, 0 deletions

diff --git a/thirdparty/openjpeg b/thirdparty/openjpeg
-Subproject 1ae3470ea8c4618fa411e213f1dfcaf3b87378d
+Subproject 933b2c4b6ccbcf3e12796f74dc20f119d6fc460