Tests for MySQL/PostgreSQL/Cassandra integration are kinda broken, they expect
already initialized databases prepared for Kea tests.

--- a/src/bin/admin/tests/Makefile.am
+++ b/src/bin/admin/tests/Makefile.am
@@ -11,13 +11,13 @@
 SHTESTS += admin_tests.sh
 SHTESTS += memfile_tests.sh
 if HAVE_MYSQL
-SHTESTS += mysql_tests.sh
+#SHTESTS += mysql_tests.sh
 endif
 if HAVE_PGSQL
-SHTESTS += pgsql_tests.sh
+#SHTESTS += pgsql_tests.sh
 endif
 if HAVE_CQL
-SHTESTS += cql_tests.sh
+#SHTESTS += cql_tests.sh
 endif
 
 # Run tests on "make check".