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

src/arm/lithium-codegen-arm.h

Index: src/arm/lithium-codegen-arm.h
diff --git a/src/arm/lithium-codegen-arm.h b/src/arm/lithium-codegen-arm.h
index e0f5009a6225f81f2e2838ca5601490be975a74d..1638ee9aef2acb071b90bcdcf46a52d0ff7e65ef 100644
--- a/src/arm/lithium-codegen-arm.h
+++ b/src/arm/lithium-codegen-arm.h
@@ -349,6 +349,17 @@ class LCodeGen: public LCodeGenBase {
                     int* offset,
                     AllocationSiteMode mode);
 
+  // Emit optimized code for integer division.
+  // Inputs are signed.
+  // All registers are clobbered.
+  // If 'remainder' is no_reg, it is not computed.
+  void EmitSignedIntegerDivisionByConstant(Register result,
+                                           Register dividend,
+                                           int32_t divisor,
+                                           Register remainder,
+                                           Register scratch,
+                                           LEnvironment* environment);
+
   void EnsureSpaceForLazyDeopt(int space_needed) V8_OVERRIDE;
   void DoLoadKeyedExternalArray(LLoadKeyed* instr);
   void DoLoadKeyedFixedDoubleArray(LLoadKeyed* instr);