Revert of Reland "Keep a canonical list of shared function infos."

src/liveedit.cc

Index: src/liveedit.cc
diff --git a/src/liveedit.cc b/src/liveedit.cc
index afa0e131994d21073fbf014148aa541bdc46b585..982ac109be1867758a3b19e30a6e543f261615d7 100644
--- a/src/liveedit.cc
+++ b/src/liveedit.cc
@@ -1220,7 +1220,7 @@
   Handle<SharedFunctionInfo> shared_info =
       UnwrapSharedFunctionInfoFromJSValue(function_wrapper);
   CHECK(script_handle->IsScript() || script_handle->IsUndefined());
-  SharedFunctionInfo::SetScript(shared_info, script_handle);
+  shared_info->set_script(*script_handle);
   shared_info->DisableOptimization(kLiveEdit);
 
   function_wrapper->GetIsolate()->compilation_cache()->Remove(shared_info);