[llvm-branch-commits] [lit] Remove %T from tests (PR #160027)

[Aiden Grossman via llvm-branch-commits]

https://github.com/boomanaiden154 created https://github.com/llvm/llvm-project/pull/160027

This patch removes %T from tests in preparation for removing the
substitution completely. Splitting this off from the actual removal to
make it easier to revert the removal of %T in case I missed something.