remove unneeded cast

Author: Xor-el

HashLib/src/Crypto/Blake2BParams/HlpBlake2BParams.pas

@@ -450,7 +450,7 @@ function TBlake2BTreeConfig.Clone(): IBlake2BTreeConfig;
   LResult.FLeafSize := FLeafSize;
   LResult.FNodeOffset := FNodeOffset;
   LResult.FIsLastNode := FIsLastNode;
-  Result := LResult as IBlake2BTreeConfig;
+  Result := LResult;
 end;
 
 class function TBlake2BTreeConfig.GetSequentialTreeConfig: IBlake2BTreeConfig;

HashLib/src/Crypto/Blake2SParams/HlpBlake2SParams.pas

@@ -448,7 +448,7 @@ function TBlake2STreeConfig.Clone(): IBlake2STreeConfig;
   LResult.FLeafSize := FLeafSize;
   LResult.FNodeOffset := FNodeOffset;
   LResult.FIsLastNode := FIsLastNode;
-  Result := LResult as IBlake2STreeConfig;
+  Result := LResult;
 end;
 
 class function TBlake2STreeConfig.GetSequentialTreeConfig: IBlake2STreeConfig;