Jeremy Felt 3a00f2eb3d Multisite: Remove unnecessary reference parameters.
There is no advantage to passing parameters by reference to `get_site()`, `get_network()`, and `update_site_cache()`.

Props flixos90, ocean90 for review.
See #37615.


git-svn-id: https://develop.svn.wordpress.org/trunk@38232 602fd350-edb4-49c9-b593-d223f7449a82
2016-08-09 18:11:12 +00:00
2016-08-02 13:44:37 +00:00
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