Remove unnecessary lock in isVisibleNoLock check

[ray6080]

Description

Remove the unnecessary lock in NodeTable::isVisibleNoLock, which was introduced in #4467.

The lock caused large regression on COPY REL performance.
On a Mac Studio with M1 Max Pro and 64GB RAM, copying of ldbc-1000 knows table is improved from 115862ms to 41669ms.

[github-actions]

Benchmark Result

Master commit hash: ff64a4dfded73a6f57b6a9cd20bc10c113bef3b9
Branch commit hash: a6320bdc7ffdc97ab99d5d38dae00f5e8b227a6d

Query Group	Query Name	Mean Time - Commit (ms)	Mean Time - Master (ms)	Diff
aggregation	q24	645.34	642.87	2.47 (0.38%)
aggregation	q28	11856.21	11172.04	684.17 (6.12%)
filter	q14	126.66	125.47	1.20 (0.95%)
filter	q15	128.54	121.72	6.82 (5.60%)
filter	q16	303.71	307.38	-3.67 (-1.19%)
filter	q17	448.19	450.70	-2.51 (-0.56%)
filter	q18	1925.65	1918.24	7.41 (0.39%)
filter	zonemap-node	86.90	86.10	0.80 (0.93%)
filter	zonemap-node-lhs-cast	86.69	89.55	-2.86 (-3.19%)
filter	zonemap-rel	5677.69	5748.51	-70.82 (-1.23%)
fixed_size_expr_evaluator	q07	572.63	585.07	-12.45 (-2.13%)
fixed_size_expr_evaluator	q08	803.31	805.49	-2.18 (-0.27%)
fixed_size_expr_evaluator	q09	802.48	815.72	-13.25 (-1.62%)
fixed_size_expr_evaluator	q10	237.54	242.55	-5.01 (-2.06%)
fixed_size_expr_evaluator	q11	230.72	235.27	-4.54 (-1.93%)
fixed_size_expr_evaluator	q12	227.56	230.07	-2.51 (-1.09%)
fixed_size_expr_evaluator	q13	1461.83	1463.23	-1.41 (-0.10%)
fixed_size_seq_scan	q23	111.21	108.73	2.48 (2.28%)
join	q29	594.14	624.57	-30.42 (-4.87%)
join	q30	1514.85	1608.86	-94.02 (-5.84%)
join	q31	7.66	5.41	2.24 (41.44%)
ldbc_snb_ic	q35	2630.04	2673.10	-43.07 (-1.61%)
ldbc_snb_ic	q36	568.41	542.79	25.62 (4.72%)
ldbc_snb_is	q32	3.36	3.44	-0.07 (-2.14%)
ldbc_snb_is	q33	11.74	10.46	1.28 (12.28%)
ldbc_snb_is	q34	1.20	1.24	-0.04 (-3.26%)
multi-rel	multi-rel-large-scan	1228.47	1221.01	7.46 (0.61%)
multi-rel	multi-rel-lookup	28.97	5.40	23.57 (436.25%)
multi-rel	multi-rel-small-scan	91.05	98.75	-7.70 (-7.79%)
order_by	q25	129.07	131.68	-2.61 (-1.98%)
order_by	q26	445.64	462.06	-16.42 (-3.55%)
order_by	q27	1462.71	1453.24	9.47 (0.65%)
recursive_join	recursive-join-bidirection	310.34	301.56	8.78 (2.91%)
recursive_join	recursive-join-dense	7309.25	7004.87	304.38 (4.35%)
recursive_join	recursive-join-path	23988.78	23728.10	260.68 (1.10%)
recursive_join	recursive-join-sparse	14377.65	14674.73	-297.08 (-2.02%)
recursive_join	recursive-join-trail	7295.61	7370.70	-75.09 (-1.02%)
scan_after_filter	q01	173.09	172.32	0.77 (0.45%)
scan_after_filter	q02	159.00	155.98	3.02 (1.93%)
shortest_path_ldbc100	q37	90.98	87.51	3.47 (3.97%)
shortest_path_ldbc100	q38	320.18	362.28	-42.11 (-11.62%)
shortest_path_ldbc100	q39	66.13	63.22	2.90 (4.59%)
shortest_path_ldbc100	q40	459.25	425.15	34.10 (8.02%)
var_size_expr_evaluator	q03	2066.96	2078.32	-11.36 (-0.55%)
var_size_expr_evaluator	q04	2240.04	2261.14	-21.09 (-0.93%)
var_size_expr_evaluator	q05	2684.49	2686.41	-1.93 (-0.07%)
var_size_expr_evaluator	q06	1339.52	1346.40	-6.88 (-0.51%)
var_size_seq_scan	q19	1446.40	1460.29	-13.89 (-0.95%)
var_size_seq_scan	q20	2709.66	2719.58	-9.92 (-0.36%)
var_size_seq_scan	q21	2276.19	2345.01	-68.83 (-2.93%)
var_size_seq_scan	q22	124.11	126.88	-2.77 (-2.18%)