chore: Remove deprecated ControllerManagerConfig (#176)

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**Description**

Changes proposed in this pull request:

- Remove deprecated ControllerManagerConfig

**Related issue(s)**
Resolves kyma-project/lifecycle-manager#1375

config/default/kustomization.yaml

@@ -53,10 +53,6 @@ components:
 # endpoint w/o any authn/z, please comment the following line.
 # - manager_auth_proxy_patch.yaml
 
-# Mount the controller config file for loading manager configurations
-# through a ComponentConfig type
-# - manager_config_patch.yaml
-
 # [WEBHOOK] To enable webhook, uncomment all the sections with [WEBHOOK] prefix including the one in
 # crd/kustomization.yaml
 # - manager_webhook_patch.yaml

config/manager/kustomization.yaml

@@ -4,10 +4,6 @@ resources:
 generatorOptions:
   disableNameSuffixHash: true
 
-configMapGenerator:
-- files:
-  - controller_manager_config.yaml
-  name: manager-config
 apiVersion: kustomize.config.k8s.io/v1beta1
 kind: Kustomization
 images: