Remove Apache Tomcat on Debian to use Jetty sever

I’m a beginner on linux, and I would like to install a wiki software on a server, a virtual machine with debian 10.

First I began to follow the tutorial 1 to install Bluespice 3, a wiki sofware, the Apach part is ok, then Jetty. Afterthat I installed Apache Tomcat 9 with the help of another tutorial, tutorial 2. Then I realized jetty has the same functionnallity (Tomcat 9) and prefered by tutorial 1.

To get to the point, I want to delete Apache Tomcat to prioritize jetty, and to keep following the tutorial 1. But I didn’t install Tomcat 9 via the command line "apt-get install….", but via the extraction of tar.gz file, with the creation of Tomcat group… so i do not know the exact package names of tomcat 9 to remove its properly. Is there a specific package property of tomcat 9 to remove its properly?

Otherwise, maybe an other solution. When I type in the web browser http://localhost:8080, the web page is 404 error with the message: "the origin of the server did not find a current representation for the target ressource or is not willing to disclose that one exits". In the left bottom, it’s written "Apache Tomcat/9.0.37. I think Tomcat has the priority. But in this case I would like the html page of Bluespice3, knowing the Bluespice war file is at the right location in /var/lib/jetty9/webapps Can I modify the path between localhost and server to give the priority at jetty, without removing tomcat? Is it possible?

Thanks in advance for your help*