Remove confusing parenthetical aside

based on review feedback.

Author: handrews

jsonschema-validation.xml

@@ -937,8 +937,7 @@
                     Due to security and performance concerns, as well as the open-ended nature of
                     possible content types, implementations MUST NOT automatically decode, parse,
                     and/or validate the string contents.  Applications are expected to use these
-                    annotations to invoke the appropriate libraries (including JSON Schema for
-                    any further schema-based validation) separately.
+                    annotations to invoke the appropriate libraries separately.
                 </t>
                 <t>
                     All keywords in this section apply only to strings, and have no