Clean up the deployment test files (#217)

Author: quinnallman

docs/guides/modules/ROOT/nav.adoc

@@ -316,8 +316,4 @@
 ** xref:plans-pricing:plan-free.adoc[Free Plan overview]
 ** xref:plans-pricing:plan-performance.adoc[Performance Plan overview]
 ** xref:plans-pricing:plan-scale.adoc[Scale Plan overview]
-** xref:plans-pricing:plan-server.adoc[Server Plan overview]
-
-* Testing deployment
-** xref:plans-pricing:plan-scale.adoc[Scale Plan overview]
-** xref:plans-pricing:plan-testing.adoc[Testing Plan overview]
+** xref:plans-pricing:plan-server.adoc[Server Plan overview]