Remove unused imports

Author: JeroenDeDauw

src/Claim/Claims.php

@@ -4,15 +4,12 @@
 
 use ArrayObject;
 use Comparable;
-use Diff\DiffOp\Diff\Diff;
 use Hashable;
 use InvalidArgumentException;
 use Traversable;
-use UnexpectedValueException;
 use Wikibase\DataModel\ByPropertyIdArray;
 use Wikibase\DataModel\Entity\PropertyId;
 use Wikibase\DataModel\Snak\Snak;
-use Wikibase\DataModel\Statement\StatementListDiffer;
 
 /**
  * A claim (identified using it's GUID) can only be added once.

src/Entity/Diff/ItemDiffer.php

@@ -4,7 +4,6 @@
 
 use Diff\Differ\MapDiffer;
 use InvalidArgumentException;
-use Wikibase\DataModel\Claim\Claims;
 use Wikibase\DataModel\Entity\EntityDocument;
 use Wikibase\DataModel\Entity\Item;
 use Wikibase\DataModel\Entity\ItemId;

src/Internal/MapValueHasher.php

@@ -5,7 +5,6 @@
 use Hashable;
 use InvalidArgumentException;
 use Traversable;
-use Wikibase\DataModel\Internal\MapHasher;
 
 /**
  * Generates hashes for associative arrays based on the values of their elements.