VideoManager: Remove unused/incorrect override

[Ryanf55]

Description

Fixes a compilation error on Ubuntu 22 introduced by #14332.
This function is not used in the codebase, so it can just be removed.

/home/ryan/Dev/qgroundcontrol/src/VideoManager/VideoReceiver/GStreamer/HwBuffers/GstDmaBufVideoBuffer.h:27:10: error: ‘bool GstDmaBufVideoBuffer::isDmaBuf() const’ marked ‘override’, but does not override
   27 |     bool isDmaBuf() const override { return true; }

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Refactoring (no functional changes)
• CI/Build changes
• Other

Testing

• Tested locally
• Added/updated unit tests
• Tested with simulator (SITL)
• Tested with hardware

Platforms Tested

• Linux
• Windows
• macOS
• Android
• iOS

Flight Stacks Tested

• PX4
• ArduPilot

Screenshots

Checklist

• I have read the Contribution Guidelines
• I have read the Code of Conduct
• My code follows the project's coding standards
• I have added tests that prove my fix/feature works
• New and existing unit tests pass locally

Related Issues

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By submitting this pull request, I confirm that my contribution is made under the terms of the project's dual license (Apache 2.0 and GPL v3).

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
⚠️ Please upload report for BASE (master@b59e589). Learn more about missing BASE report.

Additional details and impacted files

@@            Coverage Diff            @@
##             master   #14365   +/-   ##
=========================================
  Coverage          ?   25.39%           
=========================================
  Files             ?      768           
  Lines             ?    65910           
  Branches          ?    30495           
=========================================
  Hits              ?    16738           
  Misses            ?    37361           
  Partials          ?    11811           

Flag	Coverage Δ
unittests	25.39% <ø> (?)

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[github-actions]

Build Results

Platform Status

Platform	Status	Details
Linux	Passed	View
Windows	Passed	View
MacOS	Passed	View
Android	Passed	View

All builds passed.

Pre-commit

Check	Status	Details
pre-commit	Failed (non-blocking)	View

Pre-commit hooks: 4 passed, 45 failed, 7 skipped.

Test Results

linux-coverage: 90 passed, 0 skipped
Total: 90 passed, 0 skipped

Code Coverage

Coverage	Baseline	Change
59.2%	59.2%	-0.0%

Artifact Sizes

Artifact	Size	Δ from master
QGroundControl	216.85 MB	-4.63 MB (decrease)
QGroundControl-aarch64	176.76 MB	-0.01 MB (decrease)
QGroundControl-installer-AMD64	134.72 MB	+0.03 MB (increase)
QGroundControl-installer-AMD64-ARM64	77.32 MB	-0.01 MB (decrease)
QGroundControl-installer-ARM64	106.04 MB	-0.00 MB (decrease)
QGroundControl-linux	335.18 MB	+0.03 MB (increase)
QGroundControl-mac	187.14 MB	+0.02 MB (increase)
QGroundControl-windows	187.15 MB	+0.02 MB (increase)
QGroundControl-x86_64	171.95 MB	-0.46 MB (decrease)
Total size decreased by 5.02 MB

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_{Updated: 2026-05-12 17:09:54 UTC • Triggered by: Android}