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/Entity/EntityIdValue.php

@@ -23,18 +23,13 @@ public function __construct( EntityId $entityId ) {
 		$this->entityId = $entityId;
 	}
 
-	/**
-	 * @return string
-	 */
 	public function getHash(): string {
 		return md5( $this->getSerializationForHash() );
 	}
 
 	/**
 	 * The serialization to use for hashing, for compatibility reasons this is
 	 * equivalent to the old (pre 7.4) PHP serialization.
-	 *
-	 * @return string
 	 */
 	public function getSerializationForHash(): string {
 		$data = $this->entityId->getSerialization();

src/Snak/PropertyValueSnak.php

@@ -50,8 +50,6 @@ public function getDataValue() {
 	/**
 	 * The serialization to use for hashing, for compatibility reasons this is
 	 * equivalent to the old (pre 7.4) PHP serialization.
-	 *
-	 * @return string
 	 */
 	public function getSerializationForHash(): string {
 		$propertyIdSerialization = $this->propertyId->getSerialization();
@@ -65,8 +63,6 @@ public function getSerializationForHash(): string {
 	/**
 	 * The serialization to use for hashing, for compatibility reasons this is
 	 * equivalent to the old (pre 7.4) PHP serialization.
-	 *
-	 * @return string
 	 */
 	private function getDataValueSerializationForHash(): string {
 		if ( method_exists( $this->dataValue, 'getSerializationForHash' ) ) {

src/Snak/SnakObject.php

@@ -67,18 +67,13 @@ public function getPropertyId() {
 		return $this->propertyId;
 	}
 
-	/**
-	 * @return string
-	 */
 	public function getHash(): string {
 		return sha1( $this->getSerializationForHash() );
 	}
 
 	/**
 	 * The serialization to use for hashing, for compatibility reasons this is
 	 * equivalent to the old (pre 7.4) PHP serialization.
-	 *
-	 * @return string
 	 */
 	public function getSerializationForHash(): string {
 		$data = $this->serialize();

src/Statement/StatementList.php

@@ -37,9 +37,6 @@ class StatementList implements IteratorAggregate, Countable {
 	 */
 	private $statements;
 
-	/**
-	 * @param Statement ...$statements
-	 */
 	public function __construct( Statement ...$statements ) {
 		$this->statements = $statements;
 	}
@@ -310,9 +307,6 @@ private function statementsEqual( array $statements ): bool {
 		return true;
 	}
 
-	/**
-	 * @return bool
-	 */
 	public function isEmpty(): bool {
 		return $this->statements === [];
 	}

src/Term/AliasGroupList.php

@@ -104,8 +104,6 @@ public function removeByLanguage( $languageCode ) {
 	/**
 	 * If the group is empty, it will not be stored.
 	 * In case the language of that group had an associated group, that group will be removed.
-	 *
-	 * @param AliasGroup $group
 	 */
 	public function setGroup( AliasGroup $group ) {
 		if ( $group->isEmpty() ) {

src/Term/TermList.php

@@ -107,8 +107,6 @@ public function hasTermForLanguage( $languageCode ) {
 
 	/**
 	 * Replaces non-empty or removes empty terms.
-	 *
-	 * @param Term $term
 	 */
 	public function setTerm( Term $term ) {
 		if ( $term->getText() === '' ) {