Remove obsolete PHPDoc tags that don't add new information

Maybe these PHPDocs are from a time where our PHPCS rule set forced
us to add documentation, even if there was nothing to say? Or these
comments are from a time before we have been able to add all these
language-level type declarations? In any case, these comments just
repeat what the code already says. They don't add any new information.

There are many more comments like this. This patch was made with a
regex and focusses on shorter 1- and 2-line comments. I don#t want to
make the patch any bigger to keep it in a state where it can still be
reviewed.

Change-Id: I36a0e3e0bff2e946f1104bcb29ad725000e90366

Author: thiemowmde

src/Diff/EntityDiff.php

@@ -121,8 +121,6 @@ public function getClaimsDiff() {
 
 	/**
 	 * Returns if there are any changes (equivalent to: any differences between the entities).
-	 *
-	 * @return bool
 	 */
 	public function isEmpty(): bool {
 		return $this->getLabelsDiff()->isEmpty()

src/Entity/EntityPrefetcher.php

@@ -24,8 +24,6 @@ public function prefetch( array $entityIds );
 
 	/**
 	 * Purges prefetched data about a given entity.
-	 *
-	 * @param EntityId $entityId
 	 */
 	public function purge( EntityId $entityId );
 

src/Entity/NullEntityPrefetcher.php

@@ -26,8 +26,6 @@ public function prefetch( array $entityIds ) {
 
 	/**
 	 * Purges prefetched data about a given entity.
-	 *
-	 * @param EntityId $entityId
 	 */
 	public function purge( EntityId $entityId ) {
 	}

src/Lookup/RestrictedEntityLookupFactory.php

@@ -30,10 +30,6 @@ class RestrictedEntityLookupFactory {
 	 */
 	private array $restrictedEntityLookupArray = [];
 
-	/**
-	 * @param EntityLookup $entityLookup
-	 * @param int $entityAccessLimit
-	 */
 	public function __construct( EntityLookup $entityLookup, int $entityAccessLimit ) {
 		$this->entityLookup = $entityLookup;
 		$this->entityAccessLimit = $entityAccessLimit;