marginal: Remove broken symlinks

Signed-off-by: Sam Lang <sam.lang@inktank.com>

diff --git a/suites/marginal/thrash/clusters b/suites/marginal/thrash/clusters
deleted file mode 120000 (symlink)
index fb95369..0000000
--- a/suites/marginal/thrash/clusters
+++ /dev/null
@@ -1 +0,0 @@
-../../regression/thrash/clusters
\ No newline at end of file

diff --git a/suites/marginal/thrash/fs b/suites/marginal/thrash/fs
deleted file mode 120000 (symlink)
index 343b49f..0000000
--- a/suites/marginal/thrash/fs
+++ /dev/null
@@ -1 +0,0 @@
-../../regression/thrash/fs
\ No newline at end of file

diff --git a/suites/marginal/thrash/thrashers b/suites/marginal/thrash/thrashers
deleted file mode 120000 (symlink)
index cbb04d6..0000000
--- a/suites/marginal/thrash/thrashers
+++ /dev/null
@@ -1 +0,0 @@
-../../regression/thrash/thrashers
\ No newline at end of file