diff --git a/mlir/include/mlir/IR/Block.h b/mlir/include/mlir/IR/Block.h
--- a/mlir/include/mlir/IR/Block.h
+++ b/mlir/include/mlir/IR/Block.h
@@ -107,10 +107,6 @@
   void eraseArgument(unsigned index);
   /// Erases 'num' arguments from the index 'start'.
   void eraseArguments(unsigned start, unsigned num);
-  /// Erases the arguments listed in `argIndices` and removes them from the
-  /// argument list.
-  /// `argIndices` is allowed to have duplicates and can be in any order.
-  void eraseArguments(ArrayRef<unsigned> argIndices);
   /// Erases the arguments that have their corresponding bit set in
   /// `eraseIndices` and removes them from the argument list.
   void eraseArguments(const BitVector &eraseIndices);
diff --git a/mlir/lib/Dialect/SCF/IR/SCF.cpp b/mlir/lib/Dialect/SCF/IR/SCF.cpp
--- a/mlir/lib/Dialect/SCF/IR/SCF.cpp
+++ b/mlir/lib/Dialect/SCF/IR/SCF.cpp
@@ -3219,21 +3219,21 @@
     // Collect results mapping, new terminator args and new result types.
     SmallVector<Value> newYields;
     SmallVector<Value> newInits;
-    SmallVector<unsigned> argsToErase;
+    llvm::BitVector argsToErase(op.getBeforeArguments().size());
     for (const auto &it : llvm::enumerate(llvm::zip(
              op.getBeforeArguments(), yield.getOperands(), op.getInits()))) {
       Value beforeArg = std::get<0>(it.value());
       Value yieldValue = std::get<1>(it.value());
       Value initValue = std::get<2>(it.value());
       if (beforeArg.use_empty()) {
-        argsToErase.push_back(it.index());
+        argsToErase.set(it.index());
       } else {
         newYields.emplace_back(yieldValue);
         newInits.emplace_back(initValue);
       }
     }
 
-    if (argsToErase.empty())
+    if (argsToErase.none())
       return failure();
 
     rewriter.startRootUpdate(op);
diff --git a/mlir/lib/IR/Block.cpp b/mlir/lib/IR/Block.cpp
--- a/mlir/lib/IR/Block.cpp
+++ b/mlir/lib/IR/Block.cpp
@@ -195,13 +195,6 @@
     arg.setArgNumber(start++);
 }
 
-void Block::eraseArguments(ArrayRef<unsigned> argIndices) {
-  BitVector eraseIndices(getNumArguments());
-  for (unsigned i : argIndices)
-    eraseIndices.set(i);
-  eraseArguments(eraseIndices);
-}
-
 void Block::eraseArguments(const BitVector &eraseIndices) {
   eraseArguments(
       [&](BlockArgument arg) { return eraseIndices.test(arg.getArgNumber()); });