[llvm] [X86] Remove obsolete tablegen rules for near data in small static code model (PR #84523)

[Reid Kleckner via llvm-commits]

rnk wrote:

> Do we have test coverage for this?

>From reviewing past PRs, I would say that yes, we have adequate test coverage for x86 code models, small static, PIC, medium, etc, etc, so if the tests pass, I'm pretty confident these rules are not necessary.

https://github.com/llvm/llvm-project/pull/84523