Revert "Reapply [hwasan] Update dbg.assign intrinsics in HWAsan pass … (#79053)

…#78606"

This reverts commit 76160718 because it
caused an assertion failure in emitDbgValue function in Codegen in Clang
Linux toolchain builders for Fuchsia.
https://logs.chromium.org/logs/fuchsia/buildbucket/cr-buildbucket/8758181086086431185/+/u/clang/build/stdout