Update iar-docker-images job

Remove test code

Signed-off-by: Arthur She <arthur.she@linaro.org>
Change-Id: Ic0b9c9a1193aecea4b57ad2c03e8ef2be13c32ef
diff --git a/iar-docker-images.yaml b/iar-docker-images.yaml
index b9b040d..8ec7749 100644
--- a/iar-docker-images.yaml
+++ b/iar-docker-images.yaml
@@ -7,12 +7,9 @@
             days-to-keep: 500
             num-to-keep: 30
     disabled: false
-    # Test build job on TF-02
-    #    node: build-amd64
-    # Run on EC2
     node: build-amd64-private
     concurrent: false
-    display-name: 'TF-M IAR Docker images build job'
+    display-name: 'TF-M IAR Docker images builder'
     parameters:
         - string:
             name: GERRIT_PROJECT