Remove new, intermittently failing regression test.

Per buildfarm.

src/test/regress/expected/create_function_3.out

@@ -98,43 +98,6 @@ SELECT proname, prosecdef FROM pg_proc
  functext_c_3 | t
 (3 rows)
 
---
--- COST
---
-CREATE FUNCTION functext_D_1(int,int) RETURNS int LANGUAGE 'sql'
-       AS 'SELECT $1 + $2';
-CREATE FUNCTION functext_D_2(int,int) RETURNS int LANGUAGE 'internal'
-       AS 'int4pl';
-CREATE FUNCTION functext_D_3(int,int) RETURNS int LANGUAGE 'sql'
-       COST 500 AS 'SELECT $1 * $2';
-CREATE FUNCTION functext_D_4(int,int) RETURNS int LANGUAGE 'sql'
-       COST 0 AS 'SELECT $1 / $2';		-- Error
-ERROR:  COST must be positive
-SELECT proname, procost FROM pg_proc
-       WHERE oid in ('functext_D_1'::regproc,
-                     'functext_D_2'::regproc,
-                     'functext_D_3'::regproc) ORDER BY proname;
-   proname    | procost 
---------------+---------
- functext_d_1 |     100
- functext_d_2 |       1
- functext_d_3 |     500
-(3 rows)
-
-ALTER FUNCTION functext_D_1(int,int) STABLE;	-- unrelated change, no effect
-ALTER FUNCTION functext_D_2(int,int) COST 50;
-ALTER FUNCTION functext_D_3(int,int) COST 0.0001;
-SELECT proname, procost FROM pg_proc
-       WHERE oid in ('functext_D_1'::regproc,
-                     'functext_D_2'::regproc,
-                     'functext_D_3'::regproc) ORDER BY proname;
-   proname    | procost 
---------------+---------
- functext_d_1 |     100
- functext_d_2 |      50
- functext_d_3 |  0.0001
-(3 rows)
-
 --
 -- LEAKPROOF
 --
@@ -440,7 +403,7 @@ SELECT proname, proisstrict FROM pg_proc
 
 -- Cleanups
 DROP SCHEMA temp_func_test CASCADE;
-NOTICE:  drop cascades to 19 other objects
+NOTICE:  drop cascades to 16 other objects
 DETAIL:  drop cascades to function functest_a_1(text,date)
 drop cascades to function functest_a_2(text[])
 drop cascades to function functest_a_3()
@@ -451,9 +414,6 @@ drop cascades to function functest_b_4(integer)
 drop cascades to function functext_c_1(integer)
 drop cascades to function functext_c_2(integer)
 drop cascades to function functext_c_3(integer)
-drop cascades to function functext_d_1(integer,integer)
-drop cascades to function functext_d_2(integer,integer)
-drop cascades to function functext_d_3(integer,integer)
 drop cascades to function functext_e_1(integer)
 drop cascades to function functext_e_2(integer)
 drop cascades to function functext_f_1(integer)

src/test/regress/sql/create_function_3.sql

@@ -68,30 +68,6 @@ SELECT proname, prosecdef FROM pg_proc
                      'functext_C_2'::regproc,
                      'functext_C_3'::regproc) ORDER BY proname;
 
---
--- COST
---
-CREATE FUNCTION functext_D_1(int,int) RETURNS int LANGUAGE 'sql'
-       AS 'SELECT $1 + $2';
-CREATE FUNCTION functext_D_2(int,int) RETURNS int LANGUAGE 'internal'
-       AS 'int4pl';
-CREATE FUNCTION functext_D_3(int,int) RETURNS int LANGUAGE 'sql'
-       COST 500 AS 'SELECT $1 * $2';
-CREATE FUNCTION functext_D_4(int,int) RETURNS int LANGUAGE 'sql'
-       COST 0 AS 'SELECT $1 / $2';		-- Error
-SELECT proname, procost FROM pg_proc
-       WHERE oid in ('functext_D_1'::regproc,
-                     'functext_D_2'::regproc,
-                     'functext_D_3'::regproc) ORDER BY proname;
-
-ALTER FUNCTION functext_D_1(int,int) STABLE;	-- unrelated change, no effect
-ALTER FUNCTION functext_D_2(int,int) COST 50;
-ALTER FUNCTION functext_D_3(int,int) COST 0.0001;
-SELECT proname, procost FROM pg_proc
-       WHERE oid in ('functext_D_1'::regproc,
-                     'functext_D_2'::regproc,
-                     'functext_D_3'::regproc) ORDER BY proname;
-
 --
 -- LEAKPROOF
 --