Revert "Handle non-power-of-2 divisors in division-like operations", "A64 tweaks for division-like …

src/a64/lithium-codegen-a64.h

Index: src/a64/lithium-codegen-a64.h
diff --git a/src/a64/lithium-codegen-a64.h b/src/a64/lithium-codegen-a64.h
index 140b1aebc9fb9b61fa96cc6c97dbd23e2e16ccf5..74dad62b92dbbe0d793dc6fd63b64ba74c2f35da 100644
--- a/src/a64/lithium-codegen-a64.h
+++ b/src/a64/lithium-codegen-a64.h
@@ -226,7 +226,6 @@ class LCodeGen: public LCodeGenBase {
                   Deoptimizer::BailoutType* override_bailout_type = NULL);
   void DeoptimizeIf(Condition cc, LEnvironment* environment);
   void DeoptimizeIfZero(Register rt, LEnvironment* environment);
-  void DeoptimizeIfNotZero(Register rt, LEnvironment* environment);
   void DeoptimizeIfNegative(Register rt, LEnvironment* environment);
   void DeoptimizeIfSmi(Register rt, LEnvironment* environment);
   void DeoptimizeIfNotSmi(Register rt, LEnvironment* environment);