Update docs to reflect not needing to set env vars

Author: Joe Goggins

README.md

@@ -34,8 +34,6 @@ All essential commands are available at the root via `npm run <script name>` - e
 <summary><b>How to run your tests</b></summary>
 <p>
 
-The `Agent` integration tests ([source](./test/Agent.integration.js)) depend on a real HTTP api backend and a valid Particle access token. Be sure to set relevant environment variables to avoid test failures. You can prefix commands test commands like this `PARTICLE_API_BASE_URL=<url> PARTICLE_API_TOKEN=<token> npm test`
-
 `npm test` runs the tests.
 
 `npm run coverage` shows code coverage 

e2e-tests/README.md

@@ -5,4 +5,6 @@ They can be used to do deep validations on the behavior of the library against t
 Follow the directions at in each script for how to use them.
 
 Also, you'll need set valid values for env vars like PARTICLE_API_BASE_URL
-and PARTICLE_API_TOKEN
+and PARTICLE_API_TOKEN.
+
+Note also that these e2e-tests are not actively maintained.