Remove `GTF_VAR_USEDEF`.

Nothing sets this flag.

1 files changed, 0 insertions, 7 deletions

diff --git a/src/jit/rationalize.cpp b/src/jit/rationalize.cpp
index 7d39af9d66..875d9ec9f3 100644
--- a/src/jit/rationalize.cpp
+++ b/src/jit/rationalize.cpp
@@ -993,9 +993,6 @@ void Rationalizer::DoPhase()
         // This needs to be done before the transition to LIR because it relies on the use
         // of fgMorphArgs, which is designed to operate on HIR. Once this is done for a
         // particular statement, link that statement's nodes into the current basic block.
-        //
-        // This visit also clears the GTF_VAR_USEDEF bit on locals, which is not necessary
-        // in the backend.
         fgWalkResult PreOrderVisit(GenTree** use, GenTree* user)
         {
             GenTree* const node = *use;
@@ -1004,10 +1001,6 @@ void Rationalizer::DoPhase()
             {
                 m_rationalizer.RewriteIntrinsicAsUserCall(use, this->m_ancestors);
             }
-            else if (node->OperIsLocal())
-            {
-                node->gtFlags &= ~GTF_VAR_USEDEF;
-            }
 
             return Compiler::WALK_CONTINUE;
         }