qa: remove single mds yaml for cephfs multifs test

commit b98c982 (which backports 3b7233a) does not remove
this yaml file. This is causing failues such as:

     Only have 2 MDSs, require 4

Signed-off-by: Venky Shankar <vshankar@redhat.com>

diff --git a/qa/suites/fs/multifs/clusters/1-mds-2-client-coloc.yaml b/qa/suites/fs/multifs/clusters/1-mds-2-client-coloc.yaml
deleted file mode 120000 (symlink)
index d5b5c4d..0000000
--- a/qa/suites/fs/multifs/clusters/1-mds-2-client-coloc.yaml
+++ /dev/null
@@ -1 +0,0 @@
-.qa/cephfs/clusters/1-mds-2-client-coloc.yaml
\ No newline at end of file