Tests

Revert back to no worker (#283) #1441

Job	Run time
suites	2s
build	3m 28s
eunit	1m 27s
dialyzer	3m 7s
xref	51s
release	1m 1s
ct (hpr_gateway_location_SUITE.erl)	2m 32s
ct (hpr_grpc_load_SUITE.erl)	2m 40s
ct (hpr_packet_reporter_SUITE.erl)	2m 26s
ct (hpr_metrics_SUITE.erl)	2m 34s
ct (hpr_packet_router_service_SUITE.erl)	2m 32s
ct (hpr_protocol_gwmp_SUITE.erl)	2m 45s
ct (hpr_protocol_http_roaming_packet_SUITE.erl)	2m 44s
ct (hpr_route_stream_worker_SUITE.erl)	2m 25s
ct (hpr_protocol_router_SUITE.erl)	2m 49s
ct (hpr_routing_SUITE.erl)	3m 32s
	36m 55s

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