This reverts commit d42932a1b5.
Reason for revert: Breaking CMake and SKQP builds.
Original change's description:
> Add DSL PossibleExpression & PossibleStatement
>
> These are currently unused, but in future CLs they will be used to
> capture line number information in DSL error handling.
>
> Change-Id: Ieee730e0ad8323043437972fedb5bec471c367e4
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/375069
> Reviewed-by: John Stiles <johnstiles@google.com>
TBR=brianosman@google.com,ethannicholas@google.com,johnstiles@google.com
Change-Id: I2062c9964569c9129a2145f9e45f849310129687
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/375658
Reviewed-by: Florin Malita <fmalita@google.com>
Commit-Queue: Florin Malita <fmalita@google.com>
4903482a2a