Update server2.ku-*.crt

Signed-off-by: Pengyu Lv <pengyu.lv@arm.com>
diff --git a/tests/data_files/server2.ku-ds_ke.crt b/tests/data_files/server2.ku-ds_ke.crt
index ebee7e1..eb23245 100644
--- a/tests/data_files/server2.ku-ds_ke.crt
+++ b/tests/data_files/server2.ku-ds_ke.crt
@@ -1,21 +1,20 @@
 -----BEGIN CERTIFICATE-----
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 -----END CERTIFICATE-----