Unify internal and external typed arrays a bit

src/arm/lithium-codegen-arm.cc

Index: src/arm/lithium-codegen-arm.cc
diff --git a/src/arm/lithium-codegen-arm.cc b/src/arm/lithium-codegen-arm.cc
index fc33139cb01b0be2b882728f9f061a8ecc5f44e5..6447d3e39bf8790cb722247317095bd43dd03020 100644
--- a/src/arm/lithium-codegen-arm.cc
+++ b/src/arm/lithium-codegen-arm.cc
@@ -5159,14 +5159,10 @@ void LCodeGen::DoCheckArrayBufferNotNeutered(
   Register view = ToRegister(instr->view());
   Register scratch = scratch0();
 
-  Label has_no_buffer;
   __ ldr(scratch, FieldMemOperand(view, JSArrayBufferView::kBufferOffset));
-  __ JumpIfSmi(scratch, &has_no_buffer);
   __ ldr(scratch, FieldMemOperand(scratch, JSArrayBuffer::kBitFieldOffset));
   __ tst(scratch, Operand(1 << JSArrayBuffer::WasNeutered::kShift));
   DeoptimizeIf(ne, instr, Deoptimizer::kOutOfBounds);
-
-  __ bind(&has_no_buffer);
 }