Remove: #609 グループ機能を削除 #3117

Job	Run time
build (production)	2m 13s
build (test)	2m 29s
Elastic Search integration testing (3.1, docker.elastic.co/elasticsearch/elasticsearch:7.17.13)	3m 24s
Elastic Search integration testing (3.2, docker.elastic.co/elasticsearch/elasticsearch:7.17.13)	3m 30s
test (3.1)	8m 19s
Back to original and return test (.ruby-version)	11m 9s
Elastic Search integration testing (.ruby-version, docker.elastic.co/elasticsearch/elasticsearch:...	4m 2s
test (3.2)	6m 57s
End to End testing (3.1)	3m 56s
Elastic Search integration testing (.ruby-version, docker.elastic.co/elasticsearch/elasticsearch:...	4m 5s
test (.ruby-version)	8m 18s
End to End testing (3.2)	3m 33s
Elastic Search integration testing (.ruby-version, opensearchproject/opensearch:2)	4m 25s
End to End testing (.ruby-version)	2m 53s
Libvips tests (3.1)	1m 57s
Libvips tests (3.2)	1m 57s
Libvips tests (.ruby-version)	2m 10s
	1h 15m 17s

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