이미지 풀 시크릿 파일 삭제

- secret-imagepull.yaml 파일 제거
- kustomization.yaml에서 참조 제거

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.github/kustomize/base/common/secret-imagepull.yaml

@@ -1,16 +0,0 @@
-apiVersion: v1
-kind: Secret
-metadata:
-  name: phonebill
-type: kubernetes.io/dockerconfigjson
-stringData:
-  .dockerconfigjson: |
-    {
-      "auths": {
-        "docker.io": {
-          "username": "${DOCKER_USERNAME}",
-          "password": "${DOCKER_PASSWORD}",
-          "auth": "${DOCKER_AUTH}"
-        }
-      }
-    }

.github/kustomize/base/kustomization.yaml

@@ -8,7 +8,6 @@ resources:
   # Common resources
   - common/cm-common.yaml
   - common/secret-common.yaml
-  - common/secret-imagepull.yaml
   - common/ingress.yaml
 
   # API Gateway