[runtime] Remove the unused weird %Likely and %Unlikely intrinsics.

src/compiler/js-intrinsic-lowering.h

Index: src/compiler/js-intrinsic-lowering.h
diff --git a/src/compiler/js-intrinsic-lowering.h b/src/compiler/js-intrinsic-lowering.h
index 0e029202bed2787bdff7a8ccbce18e395fbfd257..8989ba19a1c46227447fe2f1c36fcbe709f028be 100644
--- a/src/compiler/js-intrinsic-lowering.h
+++ b/src/compiler/js-intrinsic-lowering.h
@@ -55,7 +55,6 @@ class JSIntrinsicLowering final : public AdvancedReducer {
   Reduction ReduceSeqStringGetChar(Node* node, String::Encoding encoding);
   Reduction ReduceSeqStringSetChar(Node* node, String::Encoding encoding);
   Reduction ReduceStringGetLength(Node* node);
-  Reduction ReduceUnLikely(Node* node, BranchHint hint);
   Reduction ReduceValueOf(Node* node);
   Reduction ReduceFixedArrayGet(Node* node);
   Reduction ReduceFixedArraySet(Node* node);