Comment out some Solr examples that give warnings on Solr start

Something very very minor to avoid things like this when launching Solr:

```3468 [coreLoadExecutor-3-thread-1] WARN  org.apache.solr.core.SolrResourceLoader  – Can't find (or read) directory to add to classloader: ../../../dist/ (resolved as: /home/ubuntu/statedecoded/solr_home/statedecoded/../../../dist).
3468 [coreLoadExecutor-3-thread-1] WARN  org.apache.solr.core.SolrResourceLoader  – Can't find (or read) directory to add to classloader: ../../../contrib/clustering/lib/ (resolved as: /home/ubuntu/statedecoded/solr_home/statedecoded/../../../contrib/clustering/lib).```