qa/suites/rados: remove rook coverage from the rados suite

The rook team relies on a daily CI system to validate
rook changes. It doesn't seem that the teuthology tests
are maintained, so it makes sense to remove them from the
rados suite.

By removing this symlink, rook test coverage will remain
in the orch suite, and coverage will only be removed from the
rados suite.

Workaround for: https://tracker.ceph.com/issues/58585
Signed-off-by: Laura Flores <lflores@redhat.com>

diff --git a/qa/suites/rados/rook b/qa/suites/rados/rook
deleted file mode 120000 (symlink)
index 1249cc9..0000000
--- a/qa/suites/rados/rook
+++ /dev/null
@@ -1 +0,0 @@
-../orch/rook
\ No newline at end of file