[cleanup] Remove dead code from DeclareLookupSlot and rename it

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index 7808551c4ecbb3aacf111e7cee0fbf5a1e8d941d..9321538f29012471a03eda8013ecf9e5fcd2f5f8 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -2031,7 +2031,6 @@ Variable* Parser::Declare(Declaration* declaration,
     var = new (zone()) Variable(declaration_scope, name, mode, kind,
                                 declaration->initialization(), kNotAssigned);
     var->AllocateTo(VariableLocation::LOOKUP, -1);
-    var->SetFromEval();
     resolve = true;
   }