Remove unused code from the app

[maskaravivek]

No description provided.

[tests-checker]

Could you please add tests to make sure this change works as expected?

[codecov-io]

Codecov Report

❗ No coverage uploaded for pull request base (master@bb0a219). Click here to learn what that means.
The diff coverage is 20%.

@@           Coverage Diff            @@
##             master   #3276   +/-   ##
========================================
  Coverage          ?    7.4%           
========================================
  Files             ?     266           
  Lines             ?   11398           
  Branches          ?     892           
========================================
  Hits              ?     844           
  Misses            ?   10492           
  Partials          ?      62

Impacted Files	Coverage Δ
...ommons/contributions/ContributionsSyncAdapter.java	0% <ø> (ø)
...fr/free/nrw/commons/achievements/Achievements.java	0% <ø> (ø)
...r/free/nrw/commons/contributions/Contribution.java	0.94% <ø> (ø)
...c/main/java/fr/free/nrw/commons/utils/UiUtils.java	0% <ø> (ø)
...ain/java/fr/free/nrw/commons/auth/AccountUtil.java	0% <ø> (ø)
...in/java/fr/free/nrw/commons/utils/LayoutUtils.java	0% <ø> (ø)
...ain/java/fr/free/nrw/commons/utils/PlaceUtils.java	0% <ø> (ø)
...rw/commons/filepicker/FilePickerConfiguration.java	0% <ø> (ø)
...ava/fr/free/nrw/commons/filepicker/FilePicker.java	0% <ø> (ø)
...e/nrw/commons/location/LocationServiceManager.java	0% <ø> (ø)
... and 13 more

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