Remove duplicate legacy-tempest-dsvm-multinode-full job

Experimental job 'legacy-tempest-dsvm-multinode-full'
is duplicate of 'tempest-multinode-full' job which is running
in check pipeline as n-v job.

This commit remove the legacy duplicate job from experimental pipeline.

Change-Id: I462e8451465bc5de85846cf26737405d16b5752e
diff --git a/.zuul.yaml b/.zuul.yaml
index c5f7ecc..1d79603 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -459,8 +459,6 @@
             irrelevant-files: *tempest-irrelevant-files
         - tempest-all:
             irrelevant-files: *tempest-irrelevant-files
-        - legacy-tempest-dsvm-multinode-full:
-            irrelevant-files: *tempest-irrelevant-files
         - legacy-tempest-dsvm-neutron-dvr-multinode-full:
             irrelevant-files: *tempest-irrelevant-files
         - neutron-tempest-dvr-ha-multinode-full: