Remove the aarch64 cross tests on ubuntu

The packages are apparently missing in ubuntu

Author: lu-zero

.github/workflows/rav1e.yml

@@ -124,8 +124,6 @@ jobs:
             toolchain: stable
           - conf: dav1d-tests
             toolchain: stable
-          - conf: dav1d-tests-arm64
-            toolchain: stable
           - conf: no-asm-tests
             toolchain: stable
           - conf: grcov-codecov
@@ -173,7 +171,6 @@ jobs:
           mv -f $SCCACHE_FILE/sccache $HOME/.local/bin/sccache
           echo "$HOME/.local/bin" >> $GITHUB_PATH
       - name: Install dependencies
-        if: matrix.conf != 'dav1d-tests-arm64'
         run: |
           sudo apt update
           sudo apt install nasm libaom-dev meson ninja-build
@@ -202,13 +199,6 @@ jobs:
         if: matrix.conf == 'grcov-codecov'
         run: |
           rustup component add llvm-tools-preview
-      - name: Install aarch64 toolchain, qemu-user and libdav1d deps
-        if: matrix.conf == 'dav1d-tests-arm64'
-        run: |
-          rustup target add aarch64-unknown-linux-gnu
-          sudo dpkg --add-architecture arm64
-          sudo apt update
-          sudo apt install qemu-user gcc-aarch64-linux-gnu meson ninja-build nasm
       - name: Generate Cargo.version for cache key
         run: |
           cargo --version > Cargo.version
@@ -248,17 +238,6 @@ jobs:
           cargo test --workspace --verbose --release \
                      --features=decode_test_dav1d \
                      --color=always -- --color=always --ignored
-      - name: Run dav1d tests (arm64)
-        if: matrix.conf == 'dav1d-tests-arm64'
-        env:
-          CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_RUNNER: qemu-aarch64 -L /usr/aarch64-linux-gnu
-          CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_RUSTFLAGS: -Clinker=aarch64-linux-gnu-gcc
-          PKG_CONFIG_PATH: /usr/lib/aarch64-linux-gnu/pkgconfig
-          PKG_CONFIG_SYSROOT_DIR: /
-        run: |
-          cargo test --lib --verbose --release --target=aarch64-unknown-linux-gnu \
-                     --no-default-features --features=asm,decode_test_dav1d -- \
-                     --include-ignored
       - name: Run build
         if: matrix.conf == 'beta-build'
         run: |