Remove body logging from Haproxy

[dianabarsan]

Describe the issue
Haproxy doesn't support logging full bodies. It is limited to 65k characters AND only logs the first chunk of a chunked body.
Logging the body partially provides no benefit for auditing, and just increases the size of stored and parsed logs.

Describe the improvement you'd like
Update haproxy config to not log request bodies anymore.

Describe alternatives you've considered
Switch to nginx (this might be done anyway in another ticket).