qtmultimedia: build C++-only (no QML); konsole uses real modules (drop workaround)

qtmultimedia: drop qtdeclarative dep (its staged QtQuick scenegraph config
header made QT_CONFIG(quick_sprite) divide by zero for consumers); keep
qtshadertools (video-frame shaders need qt_internal_add_shaders). Builds
libQt6Multimedia (API-only). konsole: drop the 439-line optional-multimedia
workaround patch and depend on qtmultimedia + qt5compat + qtbase-printsupport
directly — port the modules, don't work around them.

local/recipes/kde/konsole/recipe.toml

@@ -8,9 +8,7 @@ version = "26.04.3"
 [source]
 tar = "https://invent.kde.org/utilities/konsole/-/archive/v26.04.3/konsole-v26.04.3.tar.gz"
 blake3 = "6fca3c2ea807ca0e12d014e2f6b5832bed31c2b15a3dac9ec6e28f3599f14930"
-patches = [
-    "01-optional-multimedia-printsupport-core5compat.patch",
-]
+patches = []  # multimedia/printsupport/core5compat now provided by qtmultimedia + qtbase(printsupport) + qt5compat
 
 [build]
 template = "custom"
@@ -18,6 +16,7 @@ dependencies = [
     "icu",
     "qtbase",
     "qt5compat",
+    "qtmultimedia",
     "kf6-extra-cmake-modules",
     "kf6-kcoreaddons",
     "kf6-ki18n",

local/recipes/qt/qtmultimedia/recipe.toml

@@ -15,7 +15,6 @@ blake3 = "5d12f9a49a29e2852f3910643576a34ab77657c8c45351f00e6c1f354aff90df"
 template = "custom"
 dependencies = [
     "qtbase",
-    "qtdeclarative",
     "qtshadertools",
 ]
 script = """
@@ -35,7 +34,7 @@ done
 rm -f CMakeCache.txt
 rm -rf CMakeFiles
 
-cmake "${COOKBOOK_SOURCE}" -G Ninja -DCMAKE_TOOLCHAIN_FILE="${COOKBOOK_ROOT}/local/recipes/qt/redox-toolchain.cmake" -DQT_HOST_PATH="${HOST_BUILD}" -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="${COOKBOOK_SYSROOT}" -DQT_BUILD_EXAMPLES=OFF -DQT_BUILD_TESTS=OFF -DQT_GENERATE_SBOM=OFF -DFEATURE_ffmpeg=OFF -DFEATURE_gstreamer=OFF -DFEATURE_pulseaudio=OFF -DFEATURE_alsa=OFF -DFEATURE_pipewire=OFF -DFEATURE_v4l2=OFF -Wno-dev
+cmake "${COOKBOOK_SOURCE}" -G Ninja -DCMAKE_TOOLCHAIN_FILE="${COOKBOOK_ROOT}/local/recipes/qt/redox-toolchain.cmake" -DQT_HOST_PATH="${HOST_BUILD}" -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="${COOKBOOK_SYSROOT}" -DQT_BUILD_EXAMPLES=OFF -DQT_BUILD_TESTS=OFF -DQT_GENERATE_SBOM=OFF -DFEATURE_ffmpeg=OFF -DFEATURE_gstreamer=OFF -DFEATURE_pulseaudio=OFF -DFEATURE_alsa=OFF -DFEATURE_pipewire=OFF -DFEATURE_v4l2=OFF -DQT_FEATURE_quick_sprite=OFF -DFEATURE_qml=OFF -Wno-dev
 
 cmake --build . -j"${COOKBOOK_MAKE_JOBS}"