MT#61856 control_ng: leave some TODOers

For the following arrays:
- `ng_command_strings`
- `ng_command_strings_esc`
- `ng_command_strings_short`

Because there are still external users of them,
which should be reworked in the future to use the
`ng_command_defs` instead.

Change-Id: I4086513e295b00cc23ee035b004e896a83294bf9

daemon/control_ng.c

@@ -76,6 +76,10 @@ static const struct ng_command_def *ng_command_find(const str *cmd) {
 	return NULL;
 }
 
+/**
+ * Compatibility arrays used outside control_ng.
+ * Keep generated from NG_COMMANDS until callers are migrated to a helper API.
+ */
 const char *ng_command_strings[OP_COUNT] = {
 #define X(op, name, esc, short_name, handler) [op] = name,
 #define XA(op, name, esc, short_name, handler) [op] = name,