Revert revision 5657.

src/regexp-macro-assembler-irregexp.cc

Index: src/regexp-macro-assembler-irregexp.cc
diff --git a/src/regexp-macro-assembler-irregexp.cc b/src/regexp-macro-assembler-irregexp.cc
index 6fbb14adda8b1fb07bbd90c3fd7d9badcf2e7791..90abe912fa701afbd04bf5c5effa26423fbf399f 100644
--- a/src/regexp-macro-assembler-irregexp.cc
+++ b/src/regexp-macro-assembler-irregexp.cc
@@ -145,12 +145,6 @@ void RegExpMacroAssemblerIrregexp::ReadStackPointerFromRegister(
 }
 
 
-void RegExpMacroAssemblerIrregexp::SetCurrentPositionFromEnd(int by) {
-  ASSERT(is_uint24(by));
-  Emit(BC_SET_CURRENT_POSITION_FROM_END, by);
-}
-
-
 void RegExpMacroAssemblerIrregexp::SetRegister(int register_index, int to) {
   ASSERT(register_index >= 0);
   ASSERT(register_index <= kMaxRegister);