Revert "Introduce intrinsics for double values in Javascript."

src/x64/lithium-x64.h

Index: src/x64/lithium-x64.h
diff --git a/src/x64/lithium-x64.h b/src/x64/lithium-x64.h
index 3f2f0214f684a7771e90731a4f665ab79556fd85..3724cff8df904fafdf82fbfbf628256e241f444b 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -80,14 +80,12 @@ class LCodeGen;
   V(ConstantI)                                  \
   V(ConstantS)                                  \
   V(ConstantT)                                  \
-  V(ConstructDouble)                            \
   V(Context)                                    \
   V(DateField)                                  \
   V(DebugBreak)                                 \
   V(DeclareGlobals)                             \
   V(Deoptimize)                                 \
   V(DivI)                                       \
-  V(DoubleBits)                                 \
   V(DoubleToI)                                  \
   V(DoubleToSmi)                                \
   V(Drop)                                       \
@@ -2315,33 +2313,6 @@ class LCheckNonSmi V8_FINAL : public LTemplateInstruction<0, 1, 0> {
 };
 
 
-class LDoubleBits V8_FINAL : public LTemplateInstruction<1, 1, 0> {
- public:
-  explicit LDoubleBits(LOperand* value) {
-    inputs_[0] = value;
-  }
-
-  LOperand* value() { return inputs_[0]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(DoubleBits, "double-bits")
-  DECLARE_HYDROGEN_ACCESSOR(DoubleBits)
-};
-
-
-class LConstructDouble V8_FINAL : public LTemplateInstruction<1, 2, 0> {
- public:
-  LConstructDouble(LOperand* hi, LOperand* lo) {
-    inputs_[0] = hi;
-    inputs_[1] = lo;
-  }
-
-  LOperand* hi() { return inputs_[0]; }
-  LOperand* lo() { return inputs_[1]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(ConstructDouble, "construct-double")
-};
-
-
 class LAllocate V8_FINAL : public LTemplateInstruction<1, 2, 1> {
  public:
   LAllocate(LOperand* context, LOperand* size, LOperand* temp) {