User:Monkbot/task 13: remove replace deprecated subscription registration parameters

Task 13 is a single use task that removes or replaces deprecated subscription and registrarion parameters in existing cs1|2 templates.

description
cs1|2 has deprecated subscription and registration at this RFC (aspect B3). This task:
 * 1) applies only to canonically named templates; redirects and template wrappers are not acknowledged
 * 2) ignores cs1|2 templates that have subscription and registration parameters that are not assigned one of the three allowed values
 * 3) does nothing when the citation template holds:
 * any of these url parameters (with assigned values):
 * url, article-url, chapter-url, entry-url, section-url (the url list)
 * AND holds any of these identifier parameters (with assigned values):
 * doi, DOI, jstor, JSTOR, bibcode, hdl, HDL, ol, OL, osti, OSTI (the identifier list)
 * this because the task cannot know which of the url parameter or the identifier parameter the original editor intended to be 'marked' by the deprecated parameters (could be one, the other, or both)
 * 1) does nothing when the citation template holds more than one of the url list parameters; again, could be one, the other, or both
 * 2) removes subscription and registration parameters when the citation template does not have any of the url list parameters; cs1|2 identifier parameters are presumed to lie behind a paywall or registration barrier; cs1|2 does not highlight the norm so subscription and registration are superfluous in these citation templates
 * 3) replaces subscription and registration with the appropriate &lt;xxx->url-access parameter when the citation template holds only one of the url list parameters

Task 13 skips pages that include.

ancillary tasks
Empty subscription and registration parameters are deleted. This task does not do awb general fixes.