removed bogus imports

Author: dghgit

core/src/main/java/org/bouncycastle/pqc/crypto/saber/Symmetric.java

@@ -1,6 +1,5 @@
 package org.bouncycastle.pqc.crypto.saber;
 
-import org.bouncycastle.crypto.Digest;
 import org.bouncycastle.crypto.Xof;
 import org.bouncycastle.crypto.digests.SHA256Digest;
 import org.bouncycastle.crypto.digests.SHA3Digest;
@@ -10,7 +9,6 @@
 import org.bouncycastle.crypto.modes.SICBlockCipher;
 import org.bouncycastle.crypto.params.KeyParameter;
 import org.bouncycastle.crypto.params.ParametersWithIV;
-import sun.security.provider.SHA;
 
 abstract class Symmetric
 {