remove timestamp from cli skf formatting #1428

Job	Run time
suites	2s
build	4m 21s
eunit	1m 25s
xref	56s
dialyzer	3m 11s
release	55s
ct (hpr_gateway_location_SUITE.erl)	2m 30s
ct (hpr_grpc_load_SUITE.erl)	2m 20s
ct (hpr_metrics_SUITE.erl)	2m 45s
ct (hpr_packet_reporter_SUITE.erl)	2m 31s
ct (hpr_packet_router_service_SUITE.erl)	2m 32s
ct (hpr_protocol_gwmp_SUITE.erl)	2m 56s
ct (hpr_protocol_http_roaming_packet_SUITE.erl)	2m 55s
ct (hpr_protocol_router_SUITE.erl)	2m 56s
ct (hpr_route_stream_worker_SUITE.erl)	2m 28s
ct (hpr_routing_SUITE.erl)	3m 22s
	38m 5s

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