[llvm] [NFC][RemoveDIs] Remove conditional compilation for RemoveDIs (PR #81149)

[Paul T Robinson via llvm-commits]

pogo59 wrote:

> hasn't flipped the value in their CMakeCache.txt.

Well, but that _never_ happens. You always have to delete CMakeCache.txt when you build with a parameter change. (IME CMakeCache.txt always takes precedence over what you say on the command line.)

https://github.com/llvm/llvm-project/pull/81149