Remove krb5_get_max_time_skew portability hack (#1875) #185

Job	Run time
CodeQL-tests	38m 3s
source-maintenance-tests	3m 3s
build-tests(ubuntu-22.04,gcc,default)	12m 32s
build-tests(ubuntu-22.04,gcc,minimal)	6m 52s
functionality-tests	17m 8s
build-tests(ubuntu-22.04,gcc,maximus)	15m 14s
build-tests(ubuntu-22.04,clang,default)	15m 11s
build-tests(ubuntu-22.04,clang,minimal)	8m 19s
build-tests(ubuntu-22.04,clang,maximus)	17m 8s
	2h 13m 30s

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