Remove unused concourse/* from source #3734

Job	Run time
check-skip	2s
prepare-test-matrix	3s
Build Apache Cloudberry RPM	13m 2s
RPM Install Test Apache Cloudberry	1m 59s
ic-good-opt-on	29m 36s
pax-ic-isolation2-opt-on	23m 11s
pax-ic-good-opt-off	23m 10s
ic-good-opt-off	25m 24s
ic-gpcontrib	4m 28s
pax-ic-isolation2-opt-off	23m 26s
pax-ic-good-opt-on	26m 40s
ic-contrib	4m 36s
ic-resgroup-v2	21m 9s
ic-isolation2-crash	4m 59s
ic-isolation2	36m 41s
ic-singlenode	7m 29s
ic-expandshrink	4m 37s
ic-cbdb-parallel	27m 54s
ic-isolation2-hot-standby	4m 57s
ic-diskquota	9m 50s
ic-parallel-retrieve-cursor	4m 37s
ic-fixme	3m 32s
Generate Apache Cloudberry Build Report	3s
	5h 1m 25s

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