Experimental parser: implement skip

src/lexer/even-more-experimental-scanner.cc

Index: src/lexer/even-more-experimental-scanner.cc
diff --git a/src/lexer/even-more-experimental-scanner.cc b/src/lexer/even-more-experimental-scanner.cc
index bcf8c2a0c91c002cbbbb15565997dd3f45006901..805208669d2a1abebc05f85d2f1f559e2d4abfed 100644
--- a/src/lexer/even-more-experimental-scanner.cc
+++ b/src/lexer/even-more-experimental-scanner.cc
@@ -58,18 +58,6 @@
 
 using namespace v8::internal;
 
-namespace {
-
-inline int HexValue(uc32 c) {
-  c -= '0';
-  if (static_cast<unsigned>(c) <= 9) return c;
-  c = (c | 0x20) - ('a' - '0');  // detect 0x11..0x16 and 0x31..0x36.
-  if (static_cast<unsigned>(c) <= 5) return c + 10;
-  return -1;
-}
-
-}
-
 namespace v8 {
 namespace internal {