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

src/crankshaft/hydrogen.cc

Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 904f04f025df1884f56f3a39976fa07e584d6caf..f6acb8870fec4840d6793bdd7c649e7652573cb6 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -12743,17 +12743,6 @@ void HOptimizedGraphBuilder::GenerateMathSqrt(CallRuntime* call) {
 }
 
 
-void HOptimizedGraphBuilder::GenerateLikely(CallRuntime* call) {
-  DCHECK(call->arguments()->length() == 1);
-  Visit(call->arguments()->at(0));
-}
-
-
-void HOptimizedGraphBuilder::GenerateUnlikely(CallRuntime* call) {
-  return GenerateLikely(call);
-}
-
-
 void HOptimizedGraphBuilder::GenerateHasInPrototypeChain(CallRuntime* call) {
   DCHECK_EQ(2, call->arguments()->length());
   CHECK_ALIVE(VisitForValue(call->arguments()->at(0)));