jsoncpp: Drop deprecation markup

Apply the change from commit 0a0f71066f (jsoncpp: Drop deprecation
markup, 2017-08-28, v3.10.0-rc1~199^2~3) to new markup instances.

Utilities/cmjsoncpp/include/json/reader.h

@@ -53,12 +53,12 @@ public:
   };
 
   /** \brief Constructs a Reader allowing all features for parsing.
-    * \deprecated Use CharReader and CharReaderBuilder.
+    * deprecated Use CharReader and CharReaderBuilder.
    */
   Reader();
 
   /** \brief Constructs a Reader allowing the specified feature set for parsing.
-    * \deprecated Use CharReader and CharReaderBuilder.
+    * deprecated Use CharReader and CharReaderBuilder.
    */
   Reader(const Features& features);