[llvm] [llvm-reduce]: print short form, actionable names in the log (PR #133561)

[Matt Arsenault via llvm-commits]

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@@ -53,8 +53,4 @@ static void extractFunctionsFromModule(Oracle &O, ReducerWorkItem &WorkItem) {
     // And finally, fully drop it.
     cast<Function>(F)->eraseFromParent();
   }
-}
-
-void llvm::reduceFunctionsDeltaPass(TestRunner &Test) {
-  runDeltaPass(Test, extractFunctionsFromModule, "Reducing Functions");
-}
+}
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arsenm wrote:

```suggestion
}

```

https://github.com/llvm/llvm-project/pull/133561