Removes the double injection of Datadog trace ID in Figgy logs.

[tpendragon]

See
DataDog/dd-trace-rb#2012 (comment)

[tpendragon]

This makes logs look like this:

{"method":"GET","path":"/","format":"html","controller":"CatalogController","action":"index","status":200,"duration":104.29,"view":23.39,"db":2.27,"ddsource":["ruby"],"params":{},"sql_queries":"'Sequel::Postgres::Database (0.51) SELECT NULL\nSequel::Postgres::Database (0.31) SELECT NULL\nSequel::Postgres::Database (1.45) SELECT * FROM \"orm_resources\" WHERE (\"internal_resource\" = 'EphemeraProject')'","sql_queries_count":3,"@timestamp":"2023-09-21T20:53:44Z","@version":"1","message":"[200] GET / (CatalogController#index)"}

instead of

[dd.env=staging dd.service=figgy dd.trace_id=2193222659669475270 dd.span_id=0] {"method":"GET","path":"/","format":"html","controller":"CatalogController","action":"index","status":200,"duration":117.64,"view":53.31,"dd":{"trace_id":"2193222659669475270","span_id":"0","env":"staging","service":"figgy","version":""},"ddsource":["ruby"],"params":{},"sql_queries":"'Sequel::Postgres::Database (3.22) SELECT NULL\nSequel::Postgres::Database (9.61) SELECT NULL\nSequel::Postgres::Database (2.18) SELECT * FROM \"orm_resources\" WHERE (\"internal_resource\" = 'EphemeraProject')'","sql_queries_count":3,"@timestamp":"2023-09-21T20:51:53Z","@version":"1","message":"[200] GET / (CatalogController#index)"}

which lets datadog parse them.