[cleanup] remove pipeline dir

[uchenily]

No description provided.

[hello-stephen]

Thank you for your contribution to Apache Doris.
Don't know what should be done next? See How to process your PR.

Please clearly describe your PR:

1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
3. What features were added. Why was this function added?
4. Which code was refactored and why was this part of the code refactored?
5. Which functions were optimized and what is the difference before and after the optimization?

[uchenily]

run buildall

[doris-robot]

TPC-H: Total hot run time: 26885 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpch-tools
Tpch sf100 test result on commit 6a3ad9544fdc7d78df595f2ee52364879e179918, data reload: false

------ Round 1 ----------------------------------
orders	Doris	NULL	NULL	0	0	0	NULL	0	NULL	NULL	2023-12-26 18:27:23	2023-12-26 18:42:55	NULL	utf-8	NULL	NULL	
============================================
q1	17651	4460	4328	4328
q2	q3	10642	779	521	521
q4	4677	363	260	260
q5	7554	1205	1037	1037
q6	176	180	148	148
q7	790	827	664	664
q8	9299	1483	1295	1295
q9	4947	4748	4707	4707
q10	6326	1912	1672	1672
q11	473	248	239	239
q12	758	576	461	461
q13	18042	2893	2164	2164
q14	230	226	212	212
q15	q16	742	751	658	658
q17	732	858	434	434
q18	5844	5307	5300	5300
q19	1101	978	603	603
q20	531	478	418	418
q21	4546	1811	1385	1385
q22	344	431	379	379
Total cold run time: 95405 ms
Total hot run time: 26885 ms

----- Round 2, with runtime_filter_mode=off -----
orders	Doris	NULL	NULL	150000000	42	6422171781	NULL	22778155	NULL	NULL	2023-12-26 18:27:23	2023-12-26 18:42:55	NULL	utf-8	NULL	NULL	
============================================
q1	4770	4675	4646	4646
q2	q3	3924	4368	3839	3839
q4	885	1215	840	840
q5	4110	4436	4288	4288
q6	189	186	146	146
q7	1779	1647	1524	1524
q8	2482	3072	2606	2606
q9	7742	7408	7287	7287
q10	3724	3986	3586	3586
q11	512	436	414	414
q12	549	626	464	464
q13	2830	3341	2330	2330
q14	294	311	296	296
q15	q16	716	770	704	704
q17	1121	1372	1391	1372
q18	7174	6779	6593	6593
q19	898	868	894	868
q20	2045	2494	2002	2002
q21	4024	3514	3324	3324
q22	476	425	383	383
Total cold run time: 50244 ms
Total hot run time: 47512 ms

[doris-robot]

TPC-DS: Total hot run time: 168497 ms

machine: 'aliyun_ecs.c7a.8xlarge_32C64G'
scripts: https://github.com/apache/doris/tree/master/tools/tpcds-tools
TPC-DS sf100 test result on commit 6a3ad9544fdc7d78df595f2ee52364879e179918, data reload: false

query5	4362	623	506	506
query6	333	223	215	215
query7	4209	464	266	266
query8	344	245	226	226
query9	8689	2687	2695	2687
query10	508	395	330	330
query11	6975	5104	4857	4857
query12	190	125	127	125
query13	1257	439	338	338
query14	5761	3688	3421	3421
query14_1	2789	2801	2807	2801
query15	206	189	173	173
query16	964	454	440	440
query17	866	697	594	594
query18	2433	435	337	337
query19	221	212	186	186
query20	132	137	130	130
query21	216	132	113	113
query22	13272	13959	14911	13959
query23	16220	15778	15619	15619
query23_1	15723	16054	15588	15588
query24	7303	1590	1226	1226
query24_1	1216	1223	1238	1223
query25	568	484	446	446
query26	1232	260	151	151
query27	2778	502	305	305
query28	4503	1833	1855	1833
query29	880	579	501	501
query30	299	232	198	198
query31	1017	966	870	870
query32	86	74	74	74
query33	533	338	298	298
query34	893	882	533	533
query35	654	675	622	622
query36	1080	1145	994	994
query37	135	101	88	88
query38	2949	2904	2944	2904
query39	874	841	820	820
query39_1	804	799	789	789
query40	238	157	142	142
query41	69	66	65	65
query42	263	262	256	256
query43	258	243	220	220
query44	
query45	199	197	183	183
query46	888	983	621	621
query47	3466	2787	2055	2055
query48	320	319	234	234
query49	655	490	399	399
query50	694	306	221	221
query51	4074	4018	3984	3984
query52	267	268	259	259
query53	291	338	287	287
query54	310	299	291	291
query55	97	89	81	81
query56	347	349	322	322
query57	1933	1814	1875	1814
query58	304	287	279	279
query59	2794	2956	2765	2765
query60	361	357	340	340
query61	181	174	179	174
query62	635	593	556	556
query63	319	287	278	278
query64	5227	1385	1016	1016
query65	
query66	1465	465	353	353
query67	24311	24368	24248	24248
query68	
query69	406	304	285	285
query70	986	977	979	977
query71	330	306	296	296
query72	2844	2672	2424	2424
query73	526	547	321	321
query74	9626	9620	9410	9410
query75	2870	2758	2464	2464
query76	2319	1019	658	658
query77	360	377	318	318
query78	11003	11122	10458	10458
query79	1144	776	583	583
query80	1332	635	538	538
query81	549	259	227	227
query82	993	156	118	118
query83	343	265	252	252
query84	300	136	107	107
query85	994	504	445	445
query86	417	314	302	302
query87	3155	3121	2997	2997
query88	3489	2635	2623	2623
query89	427	370	343	343
query90	2070	178	172	172
query91	172	170	139	139
query92	75	74	68	68
query93	890	868	499	499
query94	651	334	295	295
query95	592	348	319	319
query96	628	521	227	227
query97	2479	2474	2409	2409
query98	229	218	218	218
query99	985	1009	904	904
Total cold run time: 250304 ms
Total hot run time: 168497 ms

[doris-robot]

BE UT Coverage Report

Increment line coverage 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	52.66% (19726/37458)
Line Coverage	36.24% (184236/508422)
Region Coverage	32.36% (142232/439553)
Branch Coverage	33.56% (62176/185263)

[hello-stephen]

BE Regression && UT Coverage Report

Increment line coverage 100% (0/0) 🎉

Increment coverage report
Complete coverage report

Category	Coverage
Function Coverage	64.70% (23720/36663)
Line Coverage	47.50% (240691/506700)
Region Coverage	44.90% (199194/443601)
Branch Coverage	45.83% (85129/185745)

[github-actions]

PR approved by at least one committer and no changes requested.

[github-actions]

PR approved by anyone and no changes requested.