CI: Remove experimental aarch64 support in build script

.github/scripts/.build.zsh

@@ -57,7 +57,6 @@ build() {
     macos-x86_64
     macos-arm64
     ubuntu-x86_64
-    ubuntu-aarch64
   )
 
   local config='RelWithDebInfo'
@@ -216,8 +215,6 @@ build() {
         -DCEF_ROOT_DIR:PATH="${project_root}/.deps/cef_binary_${CEF_VERSION}_${target//ubuntu-/linux_}"
       )
 
-      if [[ ${target##*-} == aarch64 ]] cmake-args+=(-DENABLE_QSV11:BOOL=OFF)
-
       cmake_build_args+=(build_${target%%-*} --config ${config} --parallel)
       cmake_install_args+=(build_${target%%-*} --prefix ${project_root}/build_${target%%-*}/install/${config})
 

.github/scripts/utils.zsh/setup_ubuntu

@@ -64,18 +64,6 @@ popd
 
 log_group 'Installing obs-studio build dependencies from apt...'
 
-local suffix
-if [[ ${CPUTYPE} != ${target##*-} ]] {
-  local -A arch_mappings=(
-    aarch64 arm64
-    x86_64 amd64
-  )
-
-  suffix=":${arch_mappings[${target##*-}]}"
-  sudo apt-get install -y --no-install-recommends \
-    gcc-${${target##*-}//_/-}-linux-gnu g++-${${target##*-}//_/-}-linux-gnu
-}
-
 sudo apt-get install -y --no-install-recommends \
   build-essential libglib2.0-dev \
   lsb-release dh-cmake \