Unify internal and external typed arrays a bit

src/mips64/lithium-codegen-mips64.cc

Index: src/mips64/lithium-codegen-mips64.cc
diff --git a/src/mips64/lithium-codegen-mips64.cc b/src/mips64/lithium-codegen-mips64.cc
index 340f57b94427a617bcc3ed2b3553efd14f167dca..58ea58ca907807fc71f450f4157be7f0cfd5c8a3 100644
--- a/src/mips64/lithium-codegen-mips64.cc
+++ b/src/mips64/lithium-codegen-mips64.cc
@@ -5233,14 +5233,10 @@ void LCodeGen::DoCheckArrayBufferNotNeutered(
   Register view = ToRegister(instr->view());
   Register scratch = scratch0();
 
-  Label has_no_buffer;
   __ ld(scratch, FieldMemOperand(view, JSArrayBufferView::kBufferOffset));
-  __ JumpIfSmi(scratch, &has_no_buffer);
   __ lw(scratch, FieldMemOperand(scratch, JSArrayBuffer::kBitFieldOffset));
   __ And(at, scratch, 1 << JSArrayBuffer::WasNeutered::kShift);
   DeoptimizeIf(ne, instr, Deoptimizer::kOutOfBounds, at, Operand(zero_reg));
-
-  __ bind(&has_no_buffer);
 }