diff --git a/Neos.Flow/Classes/Mvc/ActionResponse.php b/Neos.Flow/Classes/Mvc/ActionResponse.php
index 47e011c2a1..5b94b5a17b 100644
--- a/Neos.Flow/Classes/Mvc/ActionResponse.php
+++ b/Neos.Flow/Classes/Mvc/ActionResponse.php
@@ -142,34 +142,6 @@ public function deleteCookie(string $cookieName): void
         $this->cookies[$cookie->getName()] = $cookie;
     }
 
-    /**
-     * Set a (HTTP) component parameter for use later in the chain.
-     * This can be used to adjust all aspects of the later processing if needed.
-     *
-     * @param string $componentClassName
-     * @param string $parameterName
-     * @param mixed $value
-     * @return void
-     * @deprecated since Flow 7.0 use setHttpHeader or replaceHttpResponse instead. For now this will still work with $componentClassName of "SetHeaderComponent" or "ReplaceHttpResponseComponent" only.
-     */
-    public function setComponentParameter(string $componentClassName, string $parameterName, $value): void
-    {
-        /** @phpstan-ignore-next-line legacy layer */
-        if ($componentClassName === \Neos\Flow\Http\Component\SetHeaderComponent::class) {
-            $this->setHttpHeader($parameterName, $value);
-            return;
-        }
-
-        /** @phpstan-ignore-next-line legacy layer */
-        if ($componentClassName === \Neos\Flow\Http\Component\ReplaceHttpResponseComponent::class && $parameterName === 'response') {
-            $this->replaceHttpResponse($value);
-            return;
-        }
-
-        /** @phpstan-ignore-next-line legacy layer */
-        throw new \InvalidArgumentException(sprintf('The method %s is deprecated. It will only allow a $componentClassName parameter of "%s" or "%s". If you want to send data to your middleware from the action, use response headers or introduce a global context. Both solutions are to be considered bad practice though.', __METHOD__, \Neos\Flow\Http\Component\SetHeaderComponent::class, \Neos\Flow\Http\Component\ReplaceHttpResponseComponent::class), 1605088079);
-    }
-
     /**
      * Set the specified header in the response, overwriting any previous value set for this header.
      *
diff --git a/Neos.Flow/Classes/Reflection/Exception/ClassLoadingForReflectionFailedException.php b/Neos.Flow/Classes/Reflection/Exception/ClassLoadingForReflectionFailedException.php
index 06b587e03f..9714abf3bf 100644
--- a/Neos.Flow/Classes/Reflection/Exception/ClassLoadingForReflectionFailedException.php
+++ b/Neos.Flow/Classes/Reflection/Exception/ClassLoadingForReflectionFailedException.php
@@ -20,13 +20,7 @@ class ClassLoadingForReflectionFailedException extends \Neos\Flow\Reflection\Exc
 {
     public static function forClassName(string $className, string $reflectedClass): self
     {
-        // @deprecated This check was added with Flow 7.0 to improve the developer experience for upgrading components and can be removed later
-        /** @phpstan-ignore-next-line legacy layer */
-        if ($className === \Neos\Flow\Http\Component\ComponentInterface::class) {
-            $message = sprintf('The class "%s" still implements the ComponentInterface. The component chain was replaced with a middleware chain in Flow 7. Please make sure you have read the upgrade instructions and converted your components to middlewares.', $reflectedClass);
-        } else {
-            $message = sprintf('Required class "%s" could not be loaded properly for reflection from "%s".%3$s%3$sPossible reasons are:%3$s%3$s * Requiring non-existent classes%3$s * Using non-supported annotations%3$s * Class-/filename mismatch.%3$s%3$sThe "Neos.Flow.object.includeClasses" setting can be used to include or exclude classes from reflection.', $className, $reflectedClass, chr(10));
-        }
+        $message = sprintf('Required class "%s" could not be loaded properly for reflection from "%s".%3$s%3$sPossible reasons are:%3$s%3$s * Requiring non-existent classes%3$s * Using non-supported annotations%3$s * Class-/filename mismatch.%3$s%3$sThe "Neos.Flow.object.includeClasses" setting can be used to include or exclude classes from reflection.', $className, $reflectedClass, chr(10));
         return new self($message);
     }
 }