diff --git a/core/includes/common.inc b/core/includes/common.inc
index eb6621e9c8361df026e300c6b70db5b9d861eb26..4bb4a2fa25ba2cee462391f5ea0598a3156f2ac1 100644
--- a/core/includes/common.inc
+++ b/core/includes/common.inc
@@ -622,29 +622,6 @@ function valid_url($url, $absolute = FALSE) {
   return Url::isValid($url, $absolute);
 }
 
-/**
- * Verifies that a number is a multiple of a given step.
- *
- * @see \Drupal\Component\Utility\Number::validStep()
- *
- * @param numeric $value
- *   The value that needs to be checked.
- * @param numeric $step
- *   The step scale factor. Must be positive.
- * @param numeric $offset
- *   (optional) An offset, to which the difference must be a multiple of the
- *   given step.
- *
- * @return bool
- *   TRUE if no step mismatch has occurred, or FALSE otherwise.
- *
- * @deprecated in Drupal 8.x-dev, will be removed before Drupal 8.0.
- *   Use \Drupal\Component\Utility\Number::validStep().
- */
-function valid_number_step($value, $step, $offset = 0.0) {
-  return Number::validStep($value, $step, $offset);
-}
-
 /**
  * @} End of "defgroup validation".
  */
diff --git a/core/tests/Drupal/Tests/Component/Utility/NumberTest.php b/core/tests/Drupal/Tests/Component/Utility/NumberTest.php
index 71db0985363d3fac8ac592cab8d6f38e97b15dff..06daa254e4fcd9c285c44295f569cba03e336e20 100644
--- a/core/tests/Drupal/Tests/Component/Utility/NumberTest.php
+++ b/core/tests/Drupal/Tests/Component/Utility/NumberTest.php
@@ -13,14 +13,14 @@
 use Drupal\Tests\UnitTestCase;
 
 /**
- * Tests number step validation by valid_number_step().
+ * Tests number step validation by Number::validStep().
  */
 class NumberTest extends UnitTestCase {
 
   public static function getInfo() {
     return array(
       'name' => 'Number step validation',
-      'description' => 'Tests number step validation by valid_number_step()',
+      'description' => 'Tests number step validation by Number::validStep()',
       'group' => 'Common',
     );
   }
@@ -43,7 +43,7 @@ public function testValidStep($value, $step, $expected) {
   }
 
   /**
-   * Tests valid_number_step() with offset.
+   * Tests Number::validStep() with offset.
    *
    * @param numeric $value
    *   The value argument for Number::validStep().