Don't bundle tests in jars #3728
Description
I downloaded and unzipped google-cloud-dns-0.63.0-alpha-tests.jar. Here's what I found inside it. We're definitely bundling the actual tests into these jars. We either shouldn't do this (just include mocks and the like) or otherwise not put these in the BOM.
$ jar tvf google-cloud-dns-0.63.0-alpha-tests.jar
0 Thu Sep 20 16:47:10 EDT 2018 META-INF/
617 Thu Sep 20 16:47:10 EDT 2018 META-INF/MANIFEST.MF
0 Thu Sep 20 16:47:10 EDT 2018 com/
0 Thu Sep 20 16:47:10 EDT 2018 com/google/
0 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/
0 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/
0 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/it/
19805 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/DnsImplTest.class
4099 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/ProjectInfoTest.class
46519 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/it/ITDnsTest.class
8991 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/SerializationTest.class
4908 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/RecordSetTest.class
3820 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/DnsExceptionTest.class
7528 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/ChangeRequestInfoTest.class
2639 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/OptionTest.class
879 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/OptionTest$5.class
3088 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/DnsBatchResultTest.class
5755 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/ZoneInfoTest.class
28870 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/DnsBatchTest.class
672 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/OptionTest$3.class
605 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/DnsImplTest$1.class
672 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/OptionTest$1.class
879 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/OptionTest$6.class
672 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/OptionTest$4.class
15648 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/ZoneTest.class
8405 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/ChangeRequestTest.class
1207 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/DnsOptionsTest.class
6212 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/DnsTest.class
672 Thu Sep 20 16:47:10 EDT 2018 com/google/cloud/dns/OptionTest$2.class
0 Thu Sep 20 16:47:10 EDT 2018 META-INF/maven/
0 Thu Sep 20 16:47:10 EDT 2018 META-INF/maven/com.google.cloud/
0 Thu Sep 20 16:47:10 EDT 2018 META-INF/maven/com.google.cloud/google-cloud-dns/
2486 Thu Sep 20 13:30:42 EDT 2018 META-INF/maven/com.google.cloud/google-cloud-dns/pom.xml
131 Thu Sep 20 16:47:10 EDT 2018 META-INF/maven/com.google.cloud/google-cloud-dns/pom.properties
246 Thu Sep 20 16:47:10 EDT 2018 META-INF/INDEX.LIST