cm_cxx_features: Remove CUDA installation warning filtering

This has been fixed in upstream LLVM. No released version contains this issue.
https://github.com/llvm/llvm-project/commit/d32170dbd5b0d54436537b6b75beaf44324e0c28
https://github.com/llvm/llvm-project/commit/eb2ba2ea953b5ea73cdbb598f77470bde1c6a011

Source/Checks/cm_cxx_features.cmake

@@ -32,8 +32,6 @@ function(cm_check_cxx_feature name)
     string(REGEX REPLACE "[^\n]* xcodebuild\\[[0-9]*:[0-9]*\\] warning: [^\n]*" "" check_output "${check_output}")
     # Filter out ld warnings.
     string(REGEX REPLACE "[^\n]*ld: warning: [^\n]*" "" check_output "${check_output}")
-    # Filter out CUDA installation warnings.
-    string(REGEX REPLACE "[^\n]*clang: warning: Unknown CUDA version[^\n]*" "" check_output "${check_output}")
     # If using the feature causes warnings, treat it as broken/unavailable.
     if(check_output MATCHES "(^|[ :])[Ww][Aa][Rr][Nn][Ii][Nn][Gg]")
       set(CMake_HAVE_CXX_${FEATURE} OFF CACHE INTERNAL "TRY_COMPILE" FORCE)