This regression experiment previously forced the use of TCP egress on the Agent
as we misunderstood the purpose of this configuration option. This is not
representative of how the Agent is used in practice and, as the TCP egress lacks
buffered IO, skews profiling results.

REF SMP-664

Signed-off-by: Brian L. Troutwine <brian.troutwine@datadoghq.com>