[builtins] Refactor the remaining Date builtins.

src/crankshaft/mips64/lithium-mips64.h

Index: src/crankshaft/mips64/lithium-mips64.h
diff --git a/src/crankshaft/mips64/lithium-mips64.h b/src/crankshaft/mips64/lithium-mips64.h
index a5a3c8ea8335dbf95201ca82df072cf03492fe65..01dc234c5af6b51788def8288049e3120e5c4bfc 100644
--- a/src/crankshaft/mips64/lithium-mips64.h
+++ b/src/crankshaft/mips64/lithium-mips64.h
@@ -62,7 +62,6 @@ class LCodeGen;
   V(ConstantT)                               \
   V(ConstructDouble)                         \
   V(Context)                                 \
-  V(DateField)                               \
   V(DebugBreak)                              \
   V(DeclareGlobals)                          \
   V(Deoptimize)                              \
@@ -1369,25 +1368,6 @@ class LMapEnumLength final : public LTemplateInstruction<1, 1, 0> {
 };
 
 
-class LDateField final : public LTemplateInstruction<1, 1, 1> {
- public:
-  LDateField(LOperand* date, LOperand* temp, Smi* index) : index_(index) {
-    inputs_[0] = date;
-    temps_[0] = temp;
-  }
-
-  LOperand* date() { return inputs_[0]; }
-  LOperand* temp() { return temps_[0]; }
-  Smi* index() const { return index_; }
-
-  DECLARE_CONCRETE_INSTRUCTION(DateField, "date-field")
-  DECLARE_HYDROGEN_ACCESSOR(DateField)
-
- private:
-  Smi* index_;
-};
-
-
 class LSeqStringGetChar final : public LTemplateInstruction<1, 2, 0> {
  public:
   LSeqStringGetChar(LOperand* string, LOperand* index) {