qa: deepsea/basic: reduce number of fs test cases by 50%

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

diff --git a/qa/suites/deepsea/basic/fs/cluster/3nodes2disks.yaml b/qa/suites/deepsea/basic/fs/cluster/3nodes2disks.yaml
deleted file mode 120000 (symlink)
index 6949f99..0000000
--- a/qa/suites/deepsea/basic/fs/cluster/3nodes2disks.yaml
+++ /dev/null
@@ -1 +0,0 @@
-../../../../../deepsea/3nodes2disks.yaml
\ No newline at end of file

diff --git a/qa/suites/deepsea/basic/fs/cluster/3nodes2disks.yaml-DISABLED b/qa/suites/deepsea/basic/fs/cluster/3nodes2disks.yaml-DISABLED
new file mode 120000 (symlink)
index 0000000..6949f99
--- /dev/null
+++ b/qa/suites/deepsea/basic/fs/cluster/3nodes2disks.yaml-DISABLED
@@ -0,0 +1 @@
+../../../../../deepsea/3nodes2disks.yaml
\ No newline at end of file