removed requirement of udisks2 on core (BugFix)

[fernando79513]

Description

Acording to #1029, the test was failing on some ubuntu core devices, because they required having the udisks2 snap, but the udisks2 snap was not needed for devices that run ubuntu core, since they were using another script to test the USB.
In summary:

• The removable_storage_watcher.py wouldn't work on core even if udisks2 snap is installed
• The run_watcher.py wouldn't work on some desktop devices
• On core devices, since they are using run_watcher.py, we do not require udisks2 snaps

Resolved issues

#1029, https://warthogs.atlassian.net/browse/CHECKBOX-1279

Documentation

There are no documentation changes.

Tests

When running:

checkbox.checkbox-cli run com.canonical.certification::usb/insert

Ubuntu Desktop requires the udisks2 package or the udisks2 snap, and fails if they don't exist
Ubuntu Core does not require this check.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.32%. Comparing base (9318a5c) to head (2820a6a).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1212   +/-   ##
=======================================
  Coverage   43.32%   43.32%           
=======================================
  Files         356      356           
  Lines       38658    38658           
  Branches     6559     6559           
=======================================
  Hits        16750    16750           
  Misses      21245    21245           
  Partials      663      663           

Flag	Coverage Δ
provider-base	16.58% <ø> (ø)

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[Hook25]

Does this work? is an empty requires constraint valid?

[Hook25]

yessir it does, +1

you learn something new every day out here :)