[clang] [llvm] Disable compiling Flang and running its tests on Clang changes (PR #92740)

[Tom Stellard via cfe-commits]

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@@ -68,7 +68,7 @@ function compute-projects-to-test() {
       done
     ;;
     clang)
-      for p in clang-tools-extra compiler-rt flang lldb cross-project-tests; do
+      for p in clang-tools-extra compiler-rt lldb cross-project-tests; do
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tstellar wrote:

Don't you also need to remove this from the llvm and mlir switch cases?  Also, we are we doing this here and not in the `exclude-windows` function?

https://github.com/llvm/llvm-project/pull/92740