Revert "Add support to load/store byte fields." and "MIPS: Add support to load/store byte fields.".

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index 27900c1eef739719ef98b0041446f83b666df6ca..11150d92eb13772a3e7a67b88ce89b39ef998594 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -947,28 +947,6 @@ void MacroAssembler::Cvtlsi2sd(XMMRegister dst, const Operand& src) {
 }
 
 
-void MacroAssembler::Load(Register dst, const Operand& src, Representation r) {
-  if (r.IsByte()) {
-    movzxbl(dst, src);
-  } else if (r.IsInteger32()) {
-    movl(dst, src);
-  } else {
-    movq(dst, src);
-  }
-}
-
-
-void MacroAssembler::Store(const Operand& dst, Register src, Representation r) {
-  if (r.IsByte()) {
-    movb(dst, src);
-  } else if (r.IsInteger32()) {
-    movl(dst, src);
-  } else {
-    movq(dst, src);
-  }
-}
-
-
 void MacroAssembler::Set(Register dst, int64_t x) {
   if (x == 0) {
     xorl(dst, dst);