WIBI-1855. Remove snasphots repositories (aka nightly) from pom.xml d…

…efinitions

 - Remove nightly Maven repositories from all pom.xml files

issue: https://jira.wibidata.com/browse/WIBI-1855
review: https://review.wibidata.net/r/3011

kiji-express-archetype/src/main/resources/archetype-resources/pom.xml

@@ -82,10 +82,5 @@
       <name>kiji-repos</name>
       <url>https://repo.wibidata.com/artifactory/kiji</url>
     </repository>
-    <repository>
-      <id>kiji-nightly</id>
-      <name>kiji-nightly</name>
-      <url>https://repo.wibidata.com/artifactory/kiji-nightly</url>
-    </repository>
   </repositories>
 </project>