Activity Stream documentation points to Gadgets documentation

Issue Summary

On the Confluence Server Macros documentation (https://confluence.atlassian.com/doc/macros-139387.html), Activity Stream Macro no longer has its own documentation and links straight to the Gadgets documentation (https://confluence.atlassian.com/doc/gadgets-204047542.html)

In addition, as of Confluence 7.0, support has been ended for this macro according to the Activity Stream Gadget documentation (https://confluence.atlassian.com/doc/activity-stream-gadget-218275789.html)

Suggested Edit

Either remove the macro from the listing of gadgets for the current documentation, or point it directly to the Activity Stream Gadget documentation instead.