[flang] [llvm] [Flang] Remove FLANG_INCLUDE_RUNTIME (PR #124126)

[Michael Kruse via llvm-commits]

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@@ -1,9 +0,0 @@
-# This test is not run by default as it requires input.
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Meinersbur wrote:

flang-rt version of this example is here: https://github.com/llvm/llvm-project/blob/main/flang-rt/examples/ExternalHelloWorld/CMakeLists.txt

This is an example that links to flang-rt from C++. No use of a Fortran compiler. I think I should delete the .cpp as well.

https://github.com/llvm/llvm-project/pull/124126