Serializer: remove unused --serialize-inner flag.

src/compiler.cc

Index: src/compiler.cc
diff --git a/src/compiler.cc b/src/compiler.cc
index 53e2fd3a7bf2e2c95ed30d1afeda0a5d6c1d63f2..2fb5bf443f7007477c9e656cbc5ce2c7b20a25d1 100644
--- a/src/compiler.cc
+++ b/src/compiler.cc
@@ -1570,13 +1570,6 @@ Handle<SharedFunctionInfo> Compiler::GetSharedFunctionInfo(
                     !LiveEditFunctionTracker::IsActive(isolate) &&
                     (!info.is_debug() || allow_lazy_without_ctx);
 
-  if (outer_info->parse_info()->is_toplevel() && outer_info->will_serialize()) {
-    // Make sure that if the toplevel code (possibly to be serialized),
-    // the inner function must be allowed to be compiled lazily.
-    // This is necessary to serialize toplevel code without inner functions.
-    DCHECK(allow_lazy);
-  }
-
   bool lazy = FLAG_lazy && allow_lazy && !literal->should_eager_compile();
 
   // Generate code