[LegacyPM] Remove legacy LoopRotate pass

GitOrigin-RevId: 8d6b451b452f5b0568297b4638530171215716eb
diff --git a/lib/Transform/Canonicalization.cpp b/lib/Transform/Canonicalization.cpp
index 901299d..748d710 100644
--- a/lib/Transform/Canonicalization.cpp
+++ b/lib/Transform/Canonicalization.cpp
@@ -48,7 +48,6 @@
   PM.add(llvm::createTailCallEliminationPass());
   PM.add(llvm::createCFGSimplificationPass());
   PM.add(llvm::createReassociatePass());
-  PM.add(llvm::createLoopRotatePass());
   if (PollyInliner) {
     PM.add(llvm::createPromoteMemoryToRegisterPass());
     PM.add(llvm::createCFGSimplificationPass());