Revert "Add docker hub credentials"

This reverts commit d77f9870ddb3a9e76703692b1fc91ef5b376a8ea.

Change-Id: Iccc22ae672a41adee0bd747a2ed20637a6617199
diff --git a/jenkins/client/credential/dockerhub.yml b/jenkins/client/credential/dockerhub.yml
deleted file mode 100644
index ed1ef0a..0000000
--- a/jenkins/client/credential/dockerhub.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-parameters:
-  jenkins:
-    client:
-      credential:
-        dockerhub:
-          username: tcpautobuild
-          password: di8ohgi3hajaiWuo