Remove __arm_atomic_store_with_stshh from llvm (#192419) This patch is revert of #181386 with some manual changes applied due to revert conflicts. Current implementation of __arm_atomic_store_with_stshh is incorrect as it doesn't enforce the memory ordering constraints as can be seen [here](https://godbolt.org/z/n5YnbaT8E). Different solution will need to be implemented, but removing for now so users don't pick this up.
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