diff --git a/examples/hdl4secnn b/examples/hdl4secnn
deleted file mode 160000
index 5f8c81c513e0d08127931fae3f24beaad68b549e..0000000000000000000000000000000000000000
--- a/examples/hdl4secnn
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-Subproject commit 5f8c81c513e0d08127931fae3f24beaad68b549e