Revert "[GWP-ASan] Fix test to work with Fuchsia's zxtest" This reverts commit 64138725e4cf0ab5e3f9c0dba38e11ce3d3b4017. Parent change https://reviews.llvm.org/D140173 broke an internal build. I'll land this bit as part of the re-land for https://reviews.llvm.org/D140173. GitOrigin-RevId: d99120939ecbe686d418fc29fdac9bc6574b5f30