[interpreter] Simplify graph builder control flow simulation.

src/compiler/bytecode-branch-analysis.cc

Index: src/compiler/bytecode-branch-analysis.cc
diff --git a/src/compiler/bytecode-branch-analysis.cc b/src/compiler/bytecode-branch-analysis.cc
index c7e64d4590d11d60a5cd3cd83d2084eb333fb7c1..d24d76826ce1df04a245cd9b535343ab0de9d443 100644
--- a/src/compiler/bytecode-branch-analysis.cc
+++ b/src/compiler/bytecode-branch-analysis.cc
@@ -111,13 +111,6 @@ const ZoneVector<int>* BytecodeBranchAnalysis::ForwardBranchesTargetting(
   }
 }
 
-void BytecodeBranchAnalysis::AddExceptionalBranch(int throw_offset,
-                                                  int handler_offset) {
-  DCHECK(is_reachable(handler_offset));     // Handler was marked reachable.
-  DCHECK_LT(throw_offset, handler_offset);  // Always a forward branch.
-  AddBranch(throw_offset, handler_offset);
-}
-
 void BytecodeBranchAnalysis::AddBranch(int source_offset, int target_offset) {
   BytecodeBranchInfo* branch_info = nullptr;
   auto iterator = branch_infos_.find(target_offset);