Remove the code that maintained two checkpoint's WAL files and all
associated stuff.

Try to avoid breaking anything else

This
* reduces disk space requirements on master
* removes a minor bug in fast failover
* simplifies code

-- 
Simon Riggs                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Attachment: remove_secondary_checkpoint.v4.patch
Description: Binary data

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