Fix room settings not treating unencrypted DMs as DMs

[jmartinesp]

Content

Removes the && isEncrypted check when trying to retrieve the other user in a DM.

Motivation and context

This condition was left there by mistake, we already consider unencrypted direct rooms with 2 people DMs.

Fixes #3071.

Tests

Open an unencrypted direct room with 2 people in it (you and someone else).

The room settings screen should display the info for the other user (double avatar, no invite button, etc.).

Tested devices

• Physical
• Emulator
• OS version(s): 14

Checklist

• Changes have been tested on an Android device or Android emulator with API 23
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/element-hq/element-x-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request title will be used in the release note, it clearly define what will change for the user
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[github-actions]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.66%. Comparing base (9756afc) to head (ea95a13).
Report is 7 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #3545   +/-   ##
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  Coverage    82.66%   82.66%           
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  Files         1732     1732           
  Lines        40958    40958           
  Branches      4955     4955           
========================================
  Hits         33859    33859           
  Misses        5342     5342           
  Partials      1757     1757           

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