Go back to suppressing foreign_data DETAIL test output.

This is almost a straight revert of commit fff518d0, which itself was a
revert of 7d3bf73a.

It turns out that commit 8aa9dd74, which sorted dependent objects before
deletion in DROP OWNED BY, was not sufficient to make all remaining
unstable DETAIL output stable.  Unstable DETAIL output from DROP ROLE
was not affected, because that happens to use a different code path.  It
doesn't seem worthwhile to fix the other code path at this time.

Discussion: https://postgr.es/m/6226.1553274783@sss.pgh.pa.us

src/test/regress/expected/foreign_data.out

@@ -439,10 +439,11 @@ GRANT USAGE ON FOREIGN DATA WRAPPER foo TO regress_test_indirect;
 SET ROLE regress_test_role;
 ALTER SERVER s1 OWNER TO regress_test_indirect;
 RESET ROLE;
+-- We use terse mode to avoid ordering issues in DROP ROLE detail output
+\set VERBOSITY terse
 DROP ROLE regress_test_indirect;                            -- ERROR
 ERROR:  role "regress_test_indirect" cannot be dropped because some objects depend on it
-DETAIL:  privileges for foreign-data wrapper foo
-owner of server s1
+\set VERBOSITY default
 \des+
                                                                                  List of foreign servers
  Name |           Owner           | Foreign-data wrapper |                   Access privileges                   |  Type  | Version |             FDW options              | Description 
@@ -1203,7 +1204,6 @@ ERROR:  permission denied for foreign-data wrapper foo
 ALTER SERVER s9 VERSION '1.1';
 GRANT USAGE ON FOREIGN SERVER s9 TO regress_test_role;
 CREATE USER MAPPING FOR current_user SERVER s9;
--- We use terse mode to avoid ordering issues in cascade detail output.
 \set VERBOSITY terse
 DROP SERVER s9 CASCADE;
 NOTICE:  drop cascades to 2 other objects

src/test/regress/sql/foreign_data.sql

@@ -199,7 +199,10 @@ GRANT USAGE ON FOREIGN DATA WRAPPER foo TO regress_test_indirect;
 SET ROLE regress_test_role;
 ALTER SERVER s1 OWNER TO regress_test_indirect;
 RESET ROLE;
+-- We use terse mode to avoid ordering issues in DROP ROLE detail output
+\set VERBOSITY terse
 DROP ROLE regress_test_indirect;                            -- ERROR
+\set VERBOSITY default
 \des+
 
 ALTER SERVER s8 RENAME to s8new;
@@ -501,7 +504,6 @@ CREATE SERVER s10 FOREIGN DATA WRAPPER foo;                     -- ERROR
 ALTER SERVER s9 VERSION '1.1';
 GRANT USAGE ON FOREIGN SERVER s9 TO regress_test_role;
 CREATE USER MAPPING FOR current_user SERVER s9;
--- We use terse mode to avoid ordering issues in cascade detail output.
 \set VERBOSITY terse
 DROP SERVER s9 CASCADE;
 \set VERBOSITY default