Removed unused messages after jgroups discovery removal #333 #882

Job	Run time
make-fedora-latest	1m 14s
clang-format-style-check	24s
make-httpd-maintainer-mode (latest)	39s
make-httpd-maintainer-mode (oldest-supported)	34s
cmake-fedora-latest (clang)	57s
cmake-fedora-latest (gcc)	55s
make-with-httpd-trunk	4m 21s
cmake-windows-latest	47s
tests	1h 21m 6s
doxygen	29s
perl-tests	3m 20s
	1h 34m 46s

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