Remove TODOs for mysql-client and test instructions

Removed TODO items related to mysql-client and tests.

Author: thimios

src/content/docs/development/dev.md

@@ -8,6 +8,7 @@ System requirements:
 - Java 17
 - [Docker](https://www.docker.com/) & [Docker Compose](https://docs.docker.com/compose/) is optional but makes running MySQL and Solr more convenient
 - [Supervisord](http://supervisord.org/) is optional but makes running the development servers more convenient
+- TODO: mysql-client
 
 Currently supported platforms for development:
 
@@ -361,10 +362,7 @@ at all times._
 
 ## Running the tests
 
-ArchivesSpace uses a combination of RSpec, integration and Selenium
-tests.
-
-     ./build/run travis:test
+TODO
 
 It's also useful to be able to run the backend unit tests separately.
 To do this, run: