remove `install-hook` #2503

Job	Run time
pre_job	5s
Build and cache Babeltrace2	4s
Distcheck ubuntu-24.04	5m 30s
Build in Tree ubuntu-24.04	5m 34s
Dist and Check ubuntu-24.04	5m 25s
Install with MPI daemon support	4m 51s
Build and Check ubuntu-24.04	5m 31s
Integration	1m 30s
	28m 30s

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