[compiler-rt] Remove maximum OSX version for sanitizers (PR #77543)

[Chris Apple via llvm-commits]

cjappl wrote:

> The libdispatch APIs here (added in https://github.com/llvm/llvm-project/commit/e0e02444bc17f83d995a26d9cc47ba3166cfcea4):

Great, thanks Julian! Very helpful.

> In a separate PR please and with some justification "What does it buy us?". This will require extensive qualification on our side. I am deferring to @thetruestblue who already did some investigation on this.

Sounds good, I will leave this PR as it is now. I will also defer this version bump PR to someone else, as this decision is above my paygrade. However I am more than happy to be involved or help test, all someone has to do is reach out.

https://github.com/llvm/llvm-project/pull/77543