ci/vkd3d: drop unused 32-bit build

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34356>

.gitlab-ci/container/build-vkd3d-proton.sh

@@ -13,30 +13,24 @@ VKD3D_PROTON_DST_DIR="/vkd3d-proton-tests"
 VKD3D_PROTON_SRC_DIR="/vkd3d-proton-src"
 VKD3D_PROTON_BUILD_DIR="/vkd3d-proton-build"
 
-function build_arch {
-  local arch="$1"
-
-  meson setup                              \
-        -Denable_tests=true                \
-        --buildtype release                \
-        --prefix "$VKD3D_PROTON_DST_DIR"   \
-        --strip                            \
-        --bindir "x${arch}"                \
-        --libdir "x${arch}"                \
-        "$VKD3D_PROTON_BUILD_DIR/build.${arch}"
-
-  ninja -C "$VKD3D_PROTON_BUILD_DIR/build.${arch}" install
-
-  install -D -m755 -t "${VKD3D_PROTON_DST_DIR}/x${arch}/bin" "$VKD3D_PROTON_BUILD_DIR/build.${arch}/tests/d3d12"
-}
-
 git clone https://github.com/HansKristian-Work/vkd3d-proton.git --single-branch -b master --no-checkout "$VKD3D_PROTON_SRC_DIR"
 pushd "$VKD3D_PROTON_SRC_DIR"
 git checkout "$VKD3D_PROTON_COMMIT"
 git submodule update --init --recursive
 git submodule update --recursive
-build_arch 64
-build_arch 86
+
+meson setup                              \
+      -D enable_tests=true               \
+      --buildtype release                \
+      --prefix "$VKD3D_PROTON_DST_DIR"   \
+      --strip                            \
+      --libdir "lib"                     \
+      "$VKD3D_PROTON_BUILD_DIR/build"
+
+ninja -C "$VKD3D_PROTON_BUILD_DIR/build" install
+
+install -m755 -t "${VKD3D_PROTON_DST_DIR}/" "$VKD3D_PROTON_BUILD_DIR/build/tests/d3d12"
+
 mkdir "$VKD3D_PROTON_DST_DIR/tests"
 cp \
   "tests/test-runner.sh" \