remove redundant installations

.devcontainer/scripts/install-dependencies.sh

@@ -5,14 +5,6 @@ set -euo pipefail
 apt-get update
 apt-get install -y curl
 
-# Flux CLI. See: https://fluxcd.io/flux/cmd/
-curl -s https://fluxcd.io/install.sh | FLUX_VERSION=2.0.0 bash
-
-# ArgoCD CLI. See: https://argo-cd.readthedocs.io/en/stable/cli_installation/
-curl -sSL -o argocd-linux-amd64 https://github.com/argoproj/argo-cd/releases/latest/download/argocd-linux-amd64
-install -m 555 argocd-linux-amd64 /usr/local/bin/argocd
-rm argocd-linux-amd64
-
 # kubectl
 curl -LO https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl
 chmod +x ./kubectl
@@ -23,8 +15,4 @@ curl -LO https://get.helm.sh/helm-v3.14.3-linux-amd64.tar.gz
 tar -zxvf helm-v3.14.3-linux-amd64.tar.gz
 rm helm-v3.14.3-linux-amd64.tar.gz
 mv linux-amd64/helm /usr/local/bin/helm
-rm -rf linux-amd64
-
-# Kustomize
-curl -s "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"  | bash
-mv kustomize /usr/local/bin
+rm -rf linux-amd64