Revert "Introduce intrinsics for double values in Javascript."

src/a64/lithium-codegen-a64.cc

Index: src/a64/lithium-codegen-a64.cc
diff --git a/src/a64/lithium-codegen-a64.cc b/src/a64/lithium-codegen-a64.cc
index 677f2b2d0befc5a4b5f3918f4d5851db9f673f6c..3e87944b17192e85538b8c835cdf04310c049b2b 100644
--- a/src/a64/lithium-codegen-a64.cc
+++ b/src/a64/lithium-codegen-a64.cc
@@ -2224,30 +2224,6 @@ void LCodeGen::DoClampTToUint8(LClampTToUint8* instr) {
 }
 
 
-void LCodeGen::DoDoubleBits(LDoubleBits* instr) {
-  DoubleRegister value_reg = ToDoubleRegister(instr->value());
-  Register result_reg = ToRegister(instr->result());
-  if (instr->hydrogen()->bits() == HDoubleBits::HIGH) {
-    __ Fmov(result_reg, value_reg);
-    __ Mov(result_reg, Operand(result_reg, LSR, 32));
-  } else {
-    __ Fmov(result_reg.W(), value_reg.S());
-  }
-}
-
-
-void LCodeGen::DoConstructDouble(LConstructDouble* instr) {
-  Register hi_reg = ToRegister(instr->hi());
-  Register lo_reg = ToRegister(instr->lo());
-  Register temp = ToRegister(instr->temp());
-  DoubleRegister result_reg = ToDoubleRegister(instr->result());
-
-  __ And(temp, lo_reg, Operand(0xffffffff));
-  __ Orr(temp, temp, Operand(hi_reg, LSL, 32));
-  __ Fmov(result_reg, temp);
-}
-
-
 void LCodeGen::DoClassOfTestAndBranch(LClassOfTestAndBranch* instr) {
   Handle<String> class_name = instr->hydrogen()->class_name();
   Label* true_label = instr->TrueLabel(chunk_);