diff --git a/includes/block/AbstractBlock.php b/includes/block/AbstractBlock.php
index 699c1ea2992..d7ebdf751cf 100644
--- a/includes/block/AbstractBlock.php
+++ b/includes/block/AbstractBlock.php
@@ -290,8 +290,6 @@ abstract class AbstractBlock implements Block {
 				$res = $this->isSitewide();
 				break;
 			case 'read':
-				$res = false;
-				break;
 			case 'purge':
 				$res = false;
 				break;
diff --git a/includes/block/BlockManager.php b/includes/block/BlockManager.php
index 3a0f55458f2..aef68511cf4 100644
--- a/includes/block/BlockManager.php
+++ b/includes/block/BlockManager.php
@@ -682,8 +682,6 @@ class BlockManager {
 			return $id;
 		}
 		$hmac = MWCryptHash::hmac( $id, $this->options->get( MainConfigNames::SecretKey ), false );
-		$cookieValue = $id . '!' . $hmac;
-		return $cookieValue;
+		return $id . '!' . $hmac;
 	}
-
 }
diff --git a/includes/block/BlockPermissionChecker.php b/includes/block/BlockPermissionChecker.php
index 0fbf93468ac..ea8193556ec 100644
--- a/includes/block/BlockPermissionChecker.php
+++ b/includes/block/BlockPermissionChecker.php
@@ -42,11 +42,6 @@ class BlockPermissionChecker {
 	 */
 	private $target;
 
-	/**
-	 * @var int|null One of AbstractBlock::TYPE_* constants, or null when unknown
-	 */
-	private $targetType = null;
-
 	/**
 	 * @var Authority Block performer
 	 */
@@ -76,7 +71,7 @@ class BlockPermissionChecker {
 	) {
 		$options->assertRequiredOptions( self::CONSTRUCTOR_OPTIONS );
 		$this->options = $options;
-		[ $this->target, $this->targetType ] = $blockUtils->parseBlockTarget( $target );
+		[ $this->target, ] = $blockUtils->parseBlockTarget( $target );
 		$this->performer = $performer;
 	}
 
diff --git a/includes/block/DatabaseBlock.php b/includes/block/DatabaseBlock.php
index 5d849f1dea8..d97dd4e91fe 100644
--- a/includes/block/DatabaseBlock.php
+++ b/includes/block/DatabaseBlock.php
@@ -103,7 +103,7 @@ class DatabaseBlock extends AbstractBlock {
 
 		$options += $defaults;
 
-		if ( $options['by'] && $options['by'] instanceof UserIdentity ) {
+		if ( $options['by'] instanceof UserIdentity ) {
 			$this->setBlocker( $options['by'] );
 		}