TADs are missing from variant data in 20210728 and 20210728b

[holtgrewe]

Describe the bug
The TAD annotation data is missing in the prebuilt databases for anthenea.

To Reproduce
In dbshell

select * from genomicfeatures_tadset;
 id | sodar_uuid | release | name | version | title | comment 
----+------------+---------+------+---------+-------+---------
(0 rows)

Expected behavior
The TAD data should be imported in the database.

Screenshots
N/A

Additional context

• Notify users together with Clinvar problems in 20210728 and 20210728b data #632

[holtgrewe]

Root Cause Analysis
The import_tables.py command interprets the always None output of _create_import_info_record as a boolean and thus never imports TADs. The same is true for gene intervals.

[holtgrewe]

Resolution Proposal
Simply remove the if constructs from import_tables.py.

Affected Components
VarFish server

Affected Modules/Files
importer/management/commands/import_tables.py

Required Architectural Changes
None

Required Database Changes
None

Backport Possible?
Not necessary, SVs experimental in anthenea.

Resolution Sketch
See above.