build

Remove obsolete setup.rb #68

Job	Run time
fedora	2m 54s
Build on ruby-head-debug (debug)	2m 0s
ubuntu ruby-head	1m 11s
ubuntu ruby-3.4	1m 11s
macos ruby-3.0	33s
macos ruby-2.6	1m 0s
windows ruby-3.2	2m 37s
ubuntu ruby-3.0	1m 2s
macos ruby-2.7	1m 2s
macos ruby-head	46s
macos ruby-3.3	34s
windows ruby-3.1	2m 23s
ubuntu ruby-3.3	1m 6s
windows ruby-3.3	2m 16s
macos ruby-3.2	39s
ubuntu ruby-2.7	1m 29s
macos ruby-3.1	36s
macos ruby-3.4	39s
windows ruby-3.4	2m 14s
ubuntu ruby-3.1	1m 5s
windows ruby-2.6	3m 22s
windows ruby-2.7	3m 6s
ubuntu ruby-3.2	1m 6s
windows ruby-3.0	2m 21s
windows ruby-head	2m 20s
ubuntu ruby-2.6	1m 25s
	40m 57s

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