remove `install-hook` #2505

Job	Run time
pre_job	3s
Build and cache Babeltrace2	3s
Build and Check ubuntu-24.04	5m 34s
Build in Tree ubuntu-24.04	5m 36s
Distcheck ubuntu-24.04	5m 32s
Dist and Check ubuntu-24.04	5m 54s
Install with MPI daemon support	4m 50s
Integration	1m 27s
	28m 59s

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