Unused thing - PostgresNode:should_rm_dirs

[dmitry-lipetsk]

Testgres has two lines with strange and "useless" code:

testgres/testgres/node.py

Line 2387 in 9da8981

node.should_rm_dirs = True

testgres/testgres/backup.py

Line 168 in 9da8981

node._should_rm_dirs = True

These things (should_rm_dirs and _should_rm_dirs) are not used and not processed anywhere.

We may delete they without any problems.

Am I right?

[dmitry-lipetsk]

Is closed via #275