[llvm] [DirectX] Set whole-module flags prior to evaluating per-function flags (PR #139967)

[Farzon Lotfi via llvm-commits]

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@@ -273,43 +320,6 @@ void ModuleShaderFlags::initialize(Module &M, DXILResourceTypeMap &DRTM,
       // Merge SCCSF with that of F
       FunctionFlags[F].merge(SCCSF);
   }
-
-  // Set DisableOptimizations flag based on the presence of OptimizeNone
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farzonl wrote:

I did not see anything in the description about why we are removing the `DisableOptimizations` block of code.

https://github.com/llvm/llvm-project/pull/139967