Revert "Add new HSeqStringGetChar instruction."

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 717a07ab7a5ef0838771df76e1a80749d311cb2c..ed17be2b3de63c14c36a3710e825ce778a7b414c 100644
--- a/src/x64/lithium-x64.h
+++ b/src/x64/lithium-x64.h
@@ -154,7 +154,6 @@ class LCodeGen;
   V(Random)                                     \
   V(RegExpLiteral)                              \
   V(Return)                                     \
-  V(SeqStringGetChar)                           \
   V(SeqStringSetChar)                           \
   V(ShiftI)                                     \
   V(SmiTag)                                     \
@@ -1282,21 +1281,6 @@ class LDateField V8_FINAL : public LTemplateInstruction<1, 1, 0> {
 };
 
 
-class LSeqStringGetChar V8_FINAL : public LTemplateInstruction<1, 2, 0> {
- public:
-  LSeqStringGetChar(LOperand* string, LOperand* index) {
-    inputs_[0] = string;
-    inputs_[1] = index;
-  }
-
-  LOperand* string() const { return inputs_[0]; }
-  LOperand* index() const { return inputs_[1]; }
-
-  DECLARE_CONCRETE_INSTRUCTION(SeqStringGetChar, "seq-string-get-char")
-  DECLARE_HYDROGEN_ACCESSOR(SeqStringGetChar)
-};
-
-
 class LSeqStringSetChar V8_FINAL : public LTemplateInstruction<1, 3, 0> {
  public:
   LSeqStringSetChar(LOperand* string,