Really fix CMake HarfBuzz build

CMake is the only build system which ensures all the referenced headers
actually exist. In the last HarfBuzz roll a few header files were
removed but the headers were not removed from the BUILD.gn file. Remove
the files from the build since they no longer exists.

Apparently CMake bails as fast as possible and only reports one
non-existent file at a time, so this time kept going until it actually
built.

Change-Id: Ib85ef8427a751b507986473ab586a0e7d0261563
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/437336
Reviewed-by: Ben Wagner <bungeman@google.com>
1 file changed