tests: upgrade/jewel-x/parallel: drop duplicate kraken.yaml

This yaml file has the effect of re-running "ceph osd set require_kraken_osds"
at the very end of the test. Drop it.

Signed-off-by: Nathan Cutler <ncutler@suse.com>

diff --git a/qa/suites/upgrade/jewel-x/parallel/kraken.yaml b/qa/suites/upgrade/jewel-x/parallel/kraken.yaml
deleted file mode 120000 (symlink)
index a890722..0000000
--- a/qa/suites/upgrade/jewel-x/parallel/kraken.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../../../../releases/kraken.yaml
\ No newline at end of file