Disable all jobs for testing

Change-Id: Ib87a9ffe99a6a39265521d6c1a6cc4cf68181274
diff --git a/mbedtls-dockerfile-builder.yaml b/mbedtls-dockerfile-builder.yaml
index 3c0db9a..3bc6879 100644
--- a/mbedtls-dockerfile-builder.yaml
+++ b/mbedtls-dockerfile-builder.yaml
@@ -1,7 +1,7 @@
 - job:
     concurrent: true
     description: Dockerfile building job
-    disabled: false
+    disabled: true
     dsl: |-
       timestamps {
           stage('build-dockerfiles') {