platform_configs: remove qtbase-linux-arm64-offscreen.yaml

We have u2404 arm64 offscreen tested in qt5 since
420b779335.

Change-Id: Ibbb7d275d4abe4fc73646747939b2361c5317b26
Reviewed-by: Jukka Jokiniva <jukka.jokiniva@qt.io>
Reviewed-by: Tero Heikkinen <tero.heikkinen@qt.io>
(cherry picked from commit dd2f96bcee)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>

coin/platform_configs/qtbase-linux-arm64-offscreen.yaml

@@ -1,26 +0,0 @@
-Version: 2
-Configurations:
-# Test on Ubuntu 24.04 ARM64 offscreen
--
-    Id: 'ubuntu-24.04-arm64-offscreen-qtbase-tests'
-    Template: 'qtci-linux-Ubuntu-24.04-aarch64-50'
-    Compiler: 'GCC'
-    Features: ['TestOnly']
-    Environment variables: [
-        'CMAKE_ARGS=-DOpenGL_GL_PREFERENCE=LEGACY',
-        'QT_QPA_OFFSCREEN_NO_GLX=1',
-        'QT_QPA_PLATFORM=offscreen'
-    ]
-    Platform dependency: 'ubuntu-24.04-arm64'
-# Test on Debian-11.6 offscreen
--
-    Id: 'debian-11.6-arm64-offscreen-qtbase-tests'
-    Template: 'qtci-linux-Debian-11.6-aarch64-50'
-    Compiler: 'GCC'
-    Features: ['Sccache', 'TestOnly']
-    Environment variables: [
-        'CMAKE_ARGS=-DOpenGL_GL_PREFERENCE=LEGACY',
-        'QT_QPA_OFFSCREEN_NO_GLX=1',
-        'QT_QPA_PLATFORM=offscreen'
-    ]
-    Platform dependency: 'debian-11.6-arm64'

coin/platform_configs/qtbase.yaml

@@ -9,7 +9,6 @@ Include: [
     wasm_qtbase_tests.yaml,
     cmake_platforms_qemu_vxworks_buildtest.yaml,
     qtlite.yaml,
-    qtbase-linux-arm64-offscreen.yaml,
     qtbase-new-compiler-testing.yaml
 ]
 Configurations: []