Replace incorrect/outdated statement about tech support in 3.3.1 understanding (#4355)

This is a change that was already made back in
#1803 but was then accidentally (I
believe?) overwritten by a later merging of another, older PR
#1651

See #1803 (comment)

---------

Co-authored-by: Kenneth G. Franqueiro 
Co-authored-by: Mike Gower 

Author: 3 people

understanding/20/error-identification.html

@@ -61,8 +61,8 @@ Intent of Error Identification
          that user agents or assistive technologies can use to identify an error and provide
          error information to the user. For example, certain technologies can specify that
          the user's input must not fall outside a specific range, or that a form field is required.
-         Currently, few technologies support this kind of programmatic information, but this
-         success criterion does not require, nor prevent it.p>
+         This type of programmatic information is not required for this success criterion, but may be covered
+         by other criteria such as <a href="name-role-value">4.1.2 Name, Role, Valuea>.p>
 
       <p>It is perfectly acceptable to indicate the error in other ways such as through the use of an image,
          color, or other visual indicator, in addition to the text description.p>