Maintenance: Removed Comm::AcceptLimiter::Instance_ global (#1954) #198

Job	Run time
source-maintenance-tests	2m 45s
build-tests(ubuntu-22.04,gcc,default)	5m 56s
functionality-tests	18m 20s
build-tests(ubuntu-22.04,gcc,minimal)	4m 2s
CodeQL-tests	23m 25s
build-tests(ubuntu-22.04,gcc,maximus)	6m 0s
build-tests(ubuntu-22.04,clang,default)	6m 17s
build-tests(ubuntu-22.04,clang,minimal)	4m 56s
build-tests(ubuntu-22.04,clang,maximus)	7m 3s
	1h 18m 44s

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