Remove assert testing for a Any<const LoopNest>

Author: fsfod

llvm/lib/Transforms/Scalar/LoopPassManager.cpp

@@ -269,8 +269,7 @@ PreservedAnalyses FunctionToLoopPassAdaptor::run(Function &F,
   PI.pushBeforeNonSkippedPassCallback([&LAR, &LI](StringRef PassID, Any IR) {
     if (isSpecialPass(PassID, {"PassManager"}))
       return;
-    assert(llvm::any_cast<const Loop *>(&IR) ||
-           llvm::any_cast<const LoopNest *>(&IR));
+    assert(llvm::any_cast<const Loop *>(&IR));
     const Loop **LPtr = llvm::any_cast<const Loop *>(&IR);
     const Loop *L = LPtr ? *LPtr : nullptr;
     assert(L && "Loop should be valid for printing");