Update drone yml

.drone.yml

@@ -2,38 +2,12 @@ kind: pipeline
 name: buildsite
 
 steps:
-- name: restore_cache
-  image: appleboy/drone-sftp-cache
-  settings:
-    server: 192.168.10.5
-    port: 22
-    username: thomas
-    password: 
-      from_secret: ssh_password
-    path: /tmp/drone
-    restore: true
-    mount:
-      - node_modules
-
 - name: build
   image: node
   commands:
   - npm install
   - npm run build
 
-- name: rebuild_cache
-  image: appleboy/drone-sftp-cache
-  settings:
-    server: 192.168.10.5
-    port: 22
-    username: thomas
-    password: 
-      from_secret: ssh_password
-    path: /tmp/drone
-    rebuild: true
-    mount:
-      - node_modules
-
 - name: copy
   image: appleboy/drone-scp
   settings:
@@ -45,3 +19,7 @@ steps:
     target: /home/thomas/swag/www
     source: ./dist/*
     strip_components: 1
+
+when:
+  branch:
+    - master