Remove unnecessary manifest

.drone.yml

@@ -1,9 +1,6 @@
 kind: pipeline
 name: amd64
-
-platform:
-  os: linux
-  arch: amd64
+type: docker
 
 steps:
   - name: build
@@ -35,31 +32,3 @@ steps:
 volumes:
   - name: build
     temp: {}
-
----
-kind: pipeline
-name: manifest
-
-steps:
-  - name: manifest
-    image: registry.meow.tf/docker/tools/manifest-tool:amd64-latest
-    environment:
-      DOCKER_USERNAME:
-        from_secret: docker_username
-      DOCKER_PASSWORD:
-        from_secret: docker_password
-      DOCKER_REGISTRY:
-        from_secret: docker_registry
-    commands:
-      - docker login -u $DOCKER_USERNAME -p $DOCKER_PASSWORD $DOCKER_REGISTRY
-      - /usr/bin/manifest-tool push from-spec manifest.yml
-
-depends_on:
-  - amd64
-
-image_pull_secrets:
-  - dockerconfigjson
-
-trigger:
-  branch:
-    - master