Cleanup some of the range uses in ModI/DivI.

src/a64/lithium-a64.h

Index: src/a64/lithium-a64.h
diff --git a/src/a64/lithium-a64.h b/src/a64/lithium-a64.h
index 6f718e5b1b4a7c9c6cd653096fbd7e99a7876370..9550d2226a57109c2acf5375e439e7fe484a4d67 100644
--- a/src/a64/lithium-a64.h
+++ b/src/a64/lithium-a64.h
@@ -1335,8 +1335,6 @@ class LDivI V8_FINAL : public LTemplateInstruction<1, 2, 1> {
   LOperand* right() { return inputs_[1]; }
   LOperand* temp() { return temps_[0]; }
 
-  bool is_flooring() { return hydrogen_value()->IsMathFloorOfDiv(); }
-
   DECLARE_CONCRETE_INSTRUCTION(DivI, "div-i")
   DECLARE_HYDROGEN_ACCESSOR(BinaryOperation)
 };