Revert "More precise assert type for Assert::integerish methods"

This reverts commit e2ee76a.

Author: ondrejmirtes

stubs/Assert.stub

@@ -23,44 +23,4 @@ class Assert
 	 */
 	public static function isNonEmptyMap($array, $message = ''): void;
 
-	/**
-     * @phpstan-assert int|numeric-string $value
-     *
-     * @param mixed  $value
-     * @param string $message
-     *
-     * @throws InvalidArgumentException
-     */
-    public static function integerish($value, $message = ''): void;
-
-	/**
-     * @phpstan-assert int|numeric-string|null $value
-     *
-     * @param mixed  $value
-     * @param string $message
-     *
-     * @throws InvalidArgumentException
-     */
-    public static function nullOrIntegerish($value, $message = ''): void;
-
-	/**
-     * @phpstan-assert iterable<int|numeric-string> $value
-     *
-     * @param mixed  $value
-     * @param string $message
-     *
-     * @throws InvalidArgumentException
-     */
-    public static function allIntegerish($value, $message = ''): void;
-
-	/**
-     * @phpstan-assert iterable<int|numeric-string|null> $value
-     *
-     * @param mixed  $value
-     * @param string $message
-     *
-     * @throws InvalidArgumentException
-     */
-    public static function allNullOrIntegerish($value, $message = ''): void;
-
 }