diff --git a/includes/LintError.php b/includes/LintError.php
index 0c5ea7d9..86ad11d4 100644
--- a/includes/LintError.php
+++ b/includes/LintError.php
@@ -70,16 +70,6 @@ class LintError {
 			? $params['templateInfo'] : null;
 	}
 
-	/**
-	 * @param LintError $other
-	 * @return bool
-	 */
-	public function equals( LintError $other ) {
-		return $this->category === $other->category
-			&& $this->params === $other->params
-			&& $this->location === $other->location;
-	}
-
 	/**
 	 * Unique id to identify this error, for internal
 	 * purposes