Revert 'reload' data expiration option and its use from oauth.

This reverts commit a957ad8b01e68941786cf475333f95ff2689d9f0 and
53e6f7b84ecd3b004770371f43dfa46648399f74.

After some discussions, we decided that the 'reload' timeout doesn't
serve a very important purpose and it will be simpler to just remove it
all together.