Do not emit receiver map in CheckPrototypes.

src/arm/stub-cache-arm.cc

Index: src/arm/stub-cache-arm.cc
diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
index 3bc955459416563747dfece1754c4afbd28492f3..1bb772e0a19b86a13084a77f09afb3aa69ab4b06 100644
--- a/src/arm/stub-cache-arm.cc
+++ b/src/arm/stub-cache-arm.cc
@@ -879,9 +879,6 @@ Register StubCompiler::CheckPrototypes(Handle<HeapType> type,
                                        Label* miss,
                                        PrototypeCheckType check) {
   Handle<Map> receiver_map(IC::TypeToMap(*type, isolate()));
-  // Make sure that the type feedback oracle harvests the receiver map.
-  // TODO(svenpanne) Remove this hack when all ICs are reworked.
-  __ mov(scratch1, Operand(receiver_map));
 
   // Make sure there's no overlap between holder and object registers.
   ASSERT(!scratch1.is(object_reg) && !scratch1.is(holder_reg));