Also revert e3ec0728, JSON regression tests

Managed to forget to update the other JSON regression test output,
again.  Revert the commit which fixed it before.

Per buildfarm.

src/test/regress/expected/json_1.out

@@ -397,70 +397,12 @@ FROM rows q;
   "y":"txt3"}
 (3 rows)
 
-SELECT row_to_json(q,pretty := true)
-FROM rows q;
- row_to_json  
---------------
- {"x":1,     +
-  "y":"txt1"}
- {"x":2,     +
-  "y":"txt2"}
- {"x":3,     +
-  "y":"txt3"}
-(3 rows)
-
 SELECT row_to_json(row((select array_agg(x) as d from generate_series(5,10) x)),false);
       row_to_json      
 -----------------------
  {"f1":[5,6,7,8,9,10]}
 (1 row)
 
-WITH x AS (SELECT a,b,c FROM (VALUES(10,20,30),
-                             (10,NULL, NULL),
-                             (NULL, NULL, NULL)) g(a,b,c))
- SELECT row_to_json(x, false, false) FROM x;
-         row_to_json          
-------------------------------
- {"a":10,"b":20,"c":30}
- {"a":10,"b":null,"c":null}
- {"a":null,"b":null,"c":null}
-(3 rows)
-
-WITH x AS (SELECT a,b,c FROM (VALUES(10,20,30),
-                             (10,NULL, NULL),
-                             (NULL, NULL, NULL)) g(a,b,c))
- SELECT row_to_json(x, false, true) FROM x;
-      row_to_json       
-------------------------
- {"a":10,"b":20,"c":30}
- {"a":10}
- {}
-(3 rows)
-
-WITH x AS (SELECT a,b,c FROM (VALUES(10,20,30),
-                             (10,NULL, NULL),
-                             (NULL, NULL, NULL)) g(a,b,c))
- SELECT row_to_json(x, ignore_nulls := true) FROM x;
-      row_to_json       
-------------------------
- {"a":10,"b":20,"c":30}
- {"a":10}
- {}
-(3 rows)
-
-WITH x AS (SELECT a,b,c FROM (VALUES(10,20,30),
-                             (10,NULL, NULL),
-                             (NULL, NULL, NULL)) g(a,b,c))
- SELECT row_to_json(x, ignore_nulls := true, pretty := true) FROM x;
- row_to_json 
--------------
- {"a":10,   +
-  "b":20,   +
-  "c":30}
- {"a":10}
- {}
-(3 rows)
-
 -- to_json, timestamps
 select to_json(timestamp '2014-05-28 12:22:35.614298');
            to_json