Revert "PowerDNS - Ensure SPF records are quoted correctly"

This change was totally wrong in practice.

This reverts commit 0f781dfdb673dde771647313346e0f5406dbbf9d
Fix utils.render_temaplate_to_file() test case name

Change-Id: I9948beccde1c9b52b6e4507feb5cad61aaff049a
Merge "Revert "PowerDNS - Ensure SPF records are quoted correctly""
Merge "Fix utils.render_temaplate_to_file() test case name"