docs: remove gitops-engine in dependencies developer guide (#24888)

Signed-off-by: Robin Lieb <[email protected]>

Author: robinlieb

docs/developer-guide/dependencies.md

@@ -1,38 +1,5 @@
 # Managing Dependencies
 
-## GitOps Engine (`github.com/argoproj/gitops-engine`)
-
-### Repository
-
-https://github.com/argoproj/gitops-engine
-
-### Pulling changes from `gitops-engine`
-
-After your GitOps Engine PR has been merged, ArgoCD needs to be updated to pull in the version of the GitOps engine that contains your change. Here are the steps:
-
-- Retrieve the SHA hash for your commit. You will use this in the next step.
-- From the `argo-cd` folder, run the following command
-
-  `go get github.com/argoproj/gitops-engine@<git-commit-sha>`
-
-  If you get an error message `invalid version: unknown revision` then you got the wrong SHA hash
-
-- Run:
-
-  `go mod tidy`
-
-- The following files are changed:
-
-  - `go.mod`
-  - `go.sum`
-
-- Create an ArgoCD PR with a `refactor:` type in its title for the two file changes.
-
-### Tips:
-
-- See https://github.com/argoproj/argo-cd/pull/4434 as an example
-- The PR might require additional, dependent changes in ArgoCD that are directly impacted by the changes made in the engine.
-
 ## Notifications Engine (`github.com/argoproj/notifications-engine`)
 
 ### Repository