remove symlink

Signed-off-by: Martin Zobel-Helas <zobel@debian.org>

diff --git a/modules/ssl/files/chains/buildd.debian.org.crt b/modules/ssl/files/chains/buildd.debian.org.crt
deleted file mode 120000 (symlink)
index 6aaa914..0000000
--- a/modules/ssl/files/chains/buildd.debian.org.crt
+++ /dev/null
@@ -1 +0,0 @@
-GANDI-CA
\ No newline at end of file