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

[Martin Storsjö via cfe-commits]

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@@ -951,7 +950,7 @@ if(LLVM_USE_SANITIZER)
       endif()
       # Prepare ASAN runtime if needed
       if (LLVM_USE_SANITIZER MATCHES ".*Address.*")
-        if (${LLVM_USE_CRT_${uppercase_CMAKE_BUILD_TYPE}} MATCHES "^(MT|MTd)$")
+        if (${CMAKE_MSVC_RUNTIME_LIBRARY} MATCHES "^(MultiThreaded|MultiThreadedDebug)$")
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mstorsjo wrote:

Oh, I wonder how I had missed this one while doing the deprecation cleanup...

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