MINIFICPP-2232 Remove option to load SSL context from flow config

[lordgamez]

https://issues.apache.org/jira/browse/MINIFICPP-2232

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[lordgamez]

With the removed dependencies the order of the includes changed and it caused an issue with the Windows DELETE macro being undefined due to the conflicting HttpRequestMethod::DELETE enum. It seemed to be a cleaner solution to remove the issue entirely by renaming the method enum values in a05a882