Remove strong mode support from binary operations.

src/crankshaft/ia32/lithium-ia32.h

Index: src/crankshaft/ia32/lithium-ia32.h
diff --git a/src/crankshaft/ia32/lithium-ia32.h b/src/crankshaft/ia32/lithium-ia32.h
index 31c810b4f82be570d8ddf55db440e989bfb9c2f7..7bbe73f1e93161ef9742dcf32b05f82de17366d8 100644
--- a/src/crankshaft/ia32/lithium-ia32.h
+++ b/src/crankshaft/ia32/lithium-ia32.h
@@ -1122,8 +1122,6 @@ class LCmpT final : public LTemplateInstruction<1, 3, 0> {
   DECLARE_CONCRETE_INSTRUCTION(CmpT, "cmp-t")
   DECLARE_HYDROGEN_ACCESSOR(CompareGeneric)
 
-  Strength strength() { return hydrogen()->strength(); }
-
   LOperand* context() { return inputs_[0]; }
   Token::Value op() const { return hydrogen()->token(); }
 };
@@ -1451,8 +1449,6 @@ class LArithmeticT final : public LTemplateInstruction<1, 3, 0> {
 
   DECLARE_HYDROGEN_ACCESSOR(BinaryOperation)
 
-  Strength strength() { return hydrogen()->strength(); }
-
  private:
   Token::Value op_;
 };