remove options

Author: shuangela

source/reference/collection-level-filtering/filter-regex.txt

@@ -43,57 +43,6 @@ Regular expressions in filter documents use ``options`` listed in the :query:`re
 the ``i`` and ``s`` options, pass in ``"si"`` to ``options``. The order of concatenated
 options does not matter.
 
-.. list-table::
-   :header-rows: 1
-   :widths: 20 80
-
-   * - Option
-     - Description
-
-   * - ``i``
-     - Case insensitivity to match upper and lower cases. For an
-       example, see :ref:`regex-case-insensitive`.
-
-   * - ``m``
-
-     - For patterns that include anchors (i.e. ``^`` for the start,
-       ``$`` for the end), match at the beginning or end of each
-       line for strings with multiline values. Without this option,
-       these anchors match at beginning or end of the string. For an
-       example, see :ref:`regex-multiline-match`.
-
-       If the pattern contains no anchors or if the string value has
-       no newline characters (e.g. ``\n``), the ``m`` option has no
-       effect.
-
-   * - ``x``
-
-     - "Extended" capability to ignore all white space characters in
-       the ``$regex`` pattern unless escaped or included in a
-       character class.
-
-       Additionally, it ignores characters in-between and including
-       an un-escaped hash/pound (``#``) character and the next new
-       line, so that you may include comments in complicated
-       patterns. This only applies to data characters; white space
-       characters may never appear within special character
-       sequences in a pattern.
-
-       The ``x`` option does not affect the handling of the VT
-       character (i.e. code 11).
-
-   * - ``s``
-
-     - Allows the dot character (i.e. ``.``) to match all
-       characters *including* newline characters. For an example,
-       see :ref:`regex-dot-new-line`.
-
-   * - ``u``
-
-     -  Supports Unicode. This flag is accepted, but is redundant. UTF is set by 
-        default in the ``$regex`` operator, making the ``u`` option 
-        unnecessary. 
-
 Regular expressions in filter documents use the following fields:
 
 .. list-table::