Replace HCheckPrototypeMaps by explicit map checks of constant values.

src/hydrogen-instructions.cc

Index: src/hydrogen-instructions.cc
diff --git a/src/hydrogen-instructions.cc b/src/hydrogen-instructions.cc
index 76d6614d418569fdb84b3fda0c4de43a6f6a3b0b..fd7a17a7dd374b535fe9ee3878bb6245fa4b520b 100644
--- a/src/hydrogen-instructions.cc
+++ b/src/hydrogen-instructions.cc
@@ -1739,13 +1739,6 @@ void HCheckInstanceType::PrintDataTo(StringStream* stream) {
 }
 
 
-void HCheckPrototypeMaps::PrintDataTo(StringStream* stream) {
-  stream->Add("[receiver_prototype=%p,holder=%p]%s",
-              *prototypes_.first(), *prototypes_.last(),
-              CanOmitPrototypeChecks() ? " (omitted)" : "");
-}
-
-
 void HCallStub::PrintDataTo(StringStream* stream) {
   stream->Add("%s ",
               CodeStub::MajorName(major_key_, false));