fix(tgnms): clean up README.md

Summary: Remove some content from top-level `README.md`.

Reviewed By: aclave1

Differential Revision: D35662680

fbshipit-source-id: 36900bd8ae22390f1e3f794b774a4cc7cef38389

README.md

@@ -68,7 +68,6 @@ nms install -f config.yml
 # Developer Guide
 
 ## [Developer Guide for `tgnms`](https://github.com/terragraph/tgnms/blob/main/tgnms/fbcnms-projects/tgnms/README.md)
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 ## Overal Architecture
 ![image](readme_images/ArchitectureOverview.png)
@@ -95,35 +94,6 @@ nms upgrade -f config.yml -c <controller_name> -i <docker_image> -h my-e2e-contr
 docker service update --with-registry-auth --image <image> <service_name>
 ```
 
-## Clearing topology from controller
-You may want to do this because your testing or playing around with the topology and you want to delete the nodes/links/sites afterwards:
-1. Find the IP of the controller your network is on and login to it.
-2. Determine how the controller was hosted.
- 1. **K8s**: has ~/.kube folder (TODO: log steps after you do them)
-
- ```yaml
- cd /opt/terragraph/gfs/e2e/<e2e_controller_name>/data
- mv topology.conf{,$(date "+%y%m%d")}
- # then delete the controller pod and itll bring itself back up.
- ```
-
- 2. **Swarm**: has docker stuff
-
- ```yaml
- cd /opt/terragraph/gfs/e2e/<e2e_controller_name>/data
- mv topology.conf{,$(date "+%y%m%d")}
- docker service ls # find the service ending in e2e_controller
- docker service update --force <service_name>
- ```
-
- 3. **Sytemd**: has systemctl list-units | grep e2e ⇒ someone compiled e2e and ran it with systemd
-
- ```yaml
- cd /root/data
- mv topology.conf{,$(date "+%y%m%d")}
- systemctl restart e2e_controller
- ```
-
 ## License
 
 TGNMS has an MIT-style license as can be seen in the [LICENSE](LICENSE) file.