Fix Dolt table function privilege checks when current database is revision-qualified

[elianddb]

MySQL privilege grants are stored against the base database name, so when a user called a Dolt table function with mydb/revision as the current database, the privilege check looked up the revision-qualfied name instead of mydb.

• Update dolt_schema_diff, dolt_diff, dolt_diff_stat, dolt_diff_summary, dolt_log, dolt_patch, dolt_preview_merge_conflicts, dolt_preview_merge_conflicts_summary, and dolt_query_diff to strip revision qualifier before performing privilege checks.

Fix #10695
Companion dolthub/docs#2804

[coffeegoddd]

@elianddb DOLT

read_tests	from_latency	to_latency	percent_change
covering_index_scan	0.57	0.55	-3.51
groupby_scan	10.09	10.09	0.0
index_join	1.86	1.86	0.0
index_join_scan	1.39	1.39	0.0
index_scan	21.89	21.89	0.0
oltp_point_select	0.27	0.27	0.0
oltp_read_only	5.28	5.28	0.0
select_random_points	0.53	0.53	0.0
select_random_ranges	0.56	0.56	0.0
table_scan	21.89	22.28	1.78
types_table_scan	65.65	66.84	1.81

write_tests	from_latency	to_latency	percent_change
oltp_delete_insert	6.43	6.32	-1.71
oltp_insert	3.13	3.13	0.0
oltp_read_write	11.45	11.45	0.0
oltp_update_index	3.19	3.19	0.0
oltp_update_non_index	3.13	3.13	0.0
oltp_write_only	6.09	6.09	0.0
types_delete_insert	6.91	6.91	0.0

[coffeegoddd]

@elianddb DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
1c9eb1d	ok	5937471

version	total_tests
1c9eb1d	5937471

correctness_percentage
100.0

[coffeegoddd]

@elianddb DOLT

test_name	from_latency_p95	to_latency_p95	percent_change
tpcc-scale-factor-1	62.19	62.19	0.0

test_name	from_server_name	from_server_version	from_tps	to_server_name	to_server_version	to_tps	percent_change
tpcc-scale-factor-1	dolt	0294acf	37.41	dolt	54d3a94	37.39	-0.05

[coffeegoddd]

@elianddb DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
54d3a94	ok	5937471

version	total_tests
54d3a94	5937471

correctness_percentage
100.0

[jycor]

LGTM