fix: use default clone with repo-level credentials

.drone.yml

@@ -1,7 +1,6 @@
 kind: pipeline
 type: kubernetes
-clone:
-  disable: true
+
 name: build-and-deploy-dev
 
 trigger:
@@ -11,14 +10,6 @@ trigger:
     - dev
 
 steps:
-  - name: dev-clone
-    image: ccr.ccs.tencentyun.com/violin/git-alpine:latest
-    settings:
-      username:
-        from_secret: git_username
-      password:
-        from_secret: git_password
-
   - name: dev-build
     image: ccr.ccs.tencentyun.com/violin/maven:3.9-eclipse-temurin-22
     commands:
@@ -48,8 +39,7 @@ steps:
 ---
 kind: pipeline
 type: kubernetes
-clone:
-  disable: true
+
 name: build-and-deploy-prod
 
 trigger:
@@ -59,14 +49,6 @@ trigger:
     - master
 
 steps:
-  - name: prod-clone
-    image: ccr.ccs.tencentyun.com/violin/git-alpine:latest
-    settings:
-      username:
-        from_secret: git_username
-      password:
-        from_secret: git_password
-
   - name: prod-build
     image: ccr.ccs.tencentyun.com/violin/maven:3.9-eclipse-temurin-22
     commands: