Remove the compiled_transitions flag and cleanup the unused code.

src/builtins.h

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 176 matching lines @@
                                     Code::kNoExtraICState)              \
   V(KeyedStoreIC_Generic,           KEYED_STORE_IC, GENERIC,            \
                                     Code::kNoExtraICState)              \
                                                                         \
   V(KeyedStoreIC_Initialize_Strict, KEYED_STORE_IC, UNINITIALIZED,      \
                                     kStrictMode)                        \
   V(KeyedStoreIC_Generic_Strict,    KEYED_STORE_IC, GENERIC,            \
                                     kStrictMode)                        \
   V(KeyedStoreIC_NonStrictArguments, KEYED_STORE_IC, MONOMORPHIC,       \
                                      Code::kNoExtraICState)             \
-  V(TransitionElementsSmiToDouble,  BUILTIN, UNINITIALIZED,             \
-                                    Code::kNoExtraICState)              \
-  V(TransitionElementsDoubleToObject, BUILTIN, UNINITIALIZED,           \
-                                      Code::kNoExtraICState)            \
                                                                         \
   /* Uses KeyedLoadIC_Initialize; must be after in list. */             \
   V(FunctionCall,                   BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
   V(FunctionApply,                  BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
                                                                         \
   V(InternalArrayCode,              BUILTIN, UNINITIALIZED,             \
                                     Code::kNoExtraICState)              \
   V(ArrayCode,                      BUILTIN, UNINITIALIZED,             \
@@ skipping 204 matching lines @@
 
   friend class BuiltinFunctionTable;
   friend class Isolate;
 
   DISALLOW_COPY_AND_ASSIGN(Builtins);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_BUILTINS_H_