[clang] [CMake]Remove LLVM_USE_CRT* (PR #66850)

[Martin Storsjö via cfe-commits]

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@@ -14,10 +14,7 @@ set(LLVM_PACKAGE_BUGREPORT @PACKAGE_BUGREPORT@)
 
 set(LLVM_BUILD_TYPE @CMAKE_BUILD_TYPE@)
 
-set(LLVM_USE_CRT_DEBUG @LLVM_USE_CRT_DEBUG@)
-set(LLVM_USE_CRT_MINSIZEREL @LLVM_USE_CRT_MINSIZEREL@)
-set(LLVM_USE_CRT_RELEASE @LLVM_USE_CRT_RELEASE@)
-set(LLVM_USE_CRT_RELWITHDEBINFO @LLVM_USE_CRT_RELWITHDEBINFO@)
+set(CMAKE_MSVC_RUNTIME_LIBRARY @CMAKE_MSVC_RUNTIME_LIBRARY@)
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mstorsjo wrote:

Hmm, I wonder what the policy here is regarding setting/exporting CMake internal variables like this. But I guess it might be important so it's probably safest to go with this.

https://github.com/llvm/llvm-project/pull/66850