Remove the useless data from the exercises table

sql/install/25-exercises.sql

@@ -63,16 +63,6 @@ ALTER SEQUENCE public.exercises_id_seq OWNED BY public.exercises.id;
 ALTER TABLE ONLY public.exercises ALTER COLUMN id SET DEFAULT nextval('public.exercises_id_seq'::regclass);
 
 
---
--- Data for Name: exercises; Type: TABLE DATA; Schema: public; Owner: icnml
---
-
-INSERT INTO public.exercises VALUES (45, '46f85c49-7e16-4564-8d86-35c83a0abd68', 6, '2020-02-20 12:22:24.546198+00', 'asdf', true);
-INSERT INTO public.exercises VALUES (4, '2d94a0fd-7efe-41fa-8d28-3720783b3873', 6, '2020-02-19 16:45:32.91295+00', 'new name', true);
-INSERT INTO public.exercises VALUES (46, '22b25eed-c79d-41a2-8559-921325b46246', 6, '2020-02-20 12:22:53.771109+00', 'aaa', true);
-INSERT INTO public.exercises VALUES (44, '832432dd-984f-44fd-a725-cc7acc72fa4b', 6, '2020-02-20 12:22:20.270567+00', 'aa', true);
-
-
 --
 -- Name: exercises_id_seq; Type: SEQUENCE SET; Schema: public; Owner: icnml
 --