Revert "Closes #5284: Adds progress bar to downloads"

[jonalmeida]

This reverts commit fb3847f.

Reverting due to failing CI builds.

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cc: @sblatz

Pull Request checklist

• Quality: This PR builds and passes detekt/ktlint checks (A pre-push hook is recommended)
• Tests: This PR includes thorough tests or an explanation of why it does not
• Changelog: This PR includes a changelog entry or does not need one
• Accessibility: The code in this PR follows accessibility best practices or does not include any user facing features

After merge

• Milestone: Make sure issues closed by this pull request are added to the milestone of the version currently in development.
• Breaking Changes: If this is a breaking change, please push a draft PR on Reference Browser to address the breaking issues.

[codecov]

Codecov Report

Merging #5427 into master will increase coverage by 0.31%.
The diff coverage is 79.31%.

@@             Coverage Diff              @@
##             master    #5427      +/-   ##
============================================
+ Coverage     79.92%   80.23%   +0.31%     
- Complexity     3983     4222     +239     
============================================
  Files           510      545      +35     
  Lines         18504    19112     +608     
  Branches       2682     2775      +93     
============================================
+ Hits          14789    15335     +546     
- Misses         2602     2618      +16     
- Partials       1113     1159      +46

Impacted Files	Coverage Δ	Complexity Δ
...mponents/feature/downloads/DownloadNotification.kt	70.32% <100%> (+70.32%)	9 <0> (+9)	⬆️
.../feature/downloads/AbstractFetchDownloadService.kt	47.19% <77.77%> (+2.45%)	22 <11> (ø)	⬇️
...components/support/sync/telemetry/SyncTelemetry.kt	91.08% <0%> (-0.92%)	34% <0%> (ø)
...ozilla/components/browser/errorpages/ErrorPages.kt
...a/mozilla/components/concept/push/PushProcessor.kt
...lla/components/support/base/observer/Consumable.kt	100% <0%> (ø)	12% <0%> (?)
...ava/mozilla/components/feature/pwa/ext/Activity.kt	100% <0%> (ø)	0% <0%> (?)
...upport/base/facts/processor/CollectionProcessor.kt	0% <0%> (ø)	0% <0%> (?)
...ts/support/base/feature/ViewBoundFeatureWrapper.kt	87.5% <0%> (ø)	16% <0%> (?)
... and 34 more

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[rocketsroger]

[rocketsroger]

bors r+

[bors]

Build succeeded

• complete-push