fix: Remove DISABLE_DEX environment variable from bundle manifests

- Remove DISABLE_DEX environment variable from the
  gitops-operator-controller-manager manifest in the
  clusterserviceversion manifest.
- Fixes #362

bundle/manifests/gitops-operator.clusterserviceversion.yaml

@@ -581,8 +581,6 @@ spec:
                   value: openshift-gitops
                 - name: OPERATOR_NAME
                   value: gitops-operator
-                - name: DISABLE_DEX
-                  value: "false"
                 image: quay.io/redhat-developer/gitops-backend-operator:v0.0.3
                 livenessProbe:
                   httpGet: