Build VGF pybind without Vulkan backend

Signed-off-by: Rob Elliott <Robert.Elliott@arm.com>
Change-Id: Id1514f7154e3e449d7d85c3b0e841cdb1cb1ebb7

Author: robell

.ci/scripts/setup-vulkan-macos-deps.sh

@@ -59,37 +59,13 @@ fi
 
 "${GITHUB_WORKSPACE}/${REPOSITORY}/install_requirements.sh" --example
 
-setup_vulkan_for_vgf() {
-  if [[ "$UNAME_S" == "Linux" && "$(uname -m)" == "x86_64" ]]; then
-    source "${GITHUB_WORKSPACE}/${REPOSITORY}/.ci/scripts/setup-vulkan-linux-deps.sh"
-  elif [[ "$UNAME_S" == "Darwin" ]]; then
-    source "${GITHUB_WORKSPACE}/${REPOSITORY}/.ci/scripts/setup-vulkan-macos-deps.sh"
-  fi
-
-  if ! command -v glslc >/dev/null 2>&1; then
-    return 1
-  fi
-
-  for _var in PATH VULKAN_SDK LD_LIBRARY_PATH DYLD_LIBRARY_PATH VK_ICD_FILENAMES VK_DRIVER_FILES ETVK_USING_SWIFTSHADER; do
-    if [[ -n "${!_var:-}" ]]; then
-      echo "${_var}=${!_var}" >> "${GITHUB_ENV}"
-    fi
-  done
-
-  return 0
-}
-
 # Enable VGF in pybind wheel builds when the platform-specific build input is
 # available from pip.
 if [[ "$UNAME_S" == "Linux" || "$UNAME_S" == "Darwin" ]]; then
   if python3 -m pip install -r \
     "${GITHUB_WORKSPACE}/${REPOSITORY}/backends/arm/requirements-arm-vgf-runtime.txt"; then
-    if setup_vulkan_for_vgf; then
-      export EXECUTORCH_PYBIND_ENABLE_VGF=ON
-      echo "EXECUTORCH_PYBIND_ENABLE_VGF=ON" >> "${GITHUB_ENV}"
-    else
-      echo "glslc unavailable after VGF build dependency install; building without VGF"
-    fi
+    export EXECUTORCH_PYBIND_ENABLE_VGF=ON
+    echo "EXECUTORCH_PYBIND_ENABLE_VGF=ON" >> "${GITHUB_ENV}"
   else
     echo "VGF build dependency unavailable on this platform; building without VGF"
   fi

.ci/scripts/wheel/pre_build_script.sh

@@ -41,10 +41,6 @@ endif()
 # TODO(larryliu0820): Temporarily disable building llm_runner for Windows wheel
 # due to the issue of tokenizer file path length limitation.
 if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
-  # VGF depends on Vulkan in the pybind flow.
-  set_overridable_option(
-    EXECUTORCH_BUILD_VULKAN ${_executorch_pybind_enable_vgf}
-  )
   set_overridable_option(EXECUTORCH_BUILD_VGF ${_executorch_pybind_enable_vgf})
   set_overridable_option(EXECUTORCH_BUILD_COREML ON)
   set_overridable_option(EXECUTORCH_BUILD_EXTENSION_TRAINING ON)
@@ -69,10 +65,6 @@ if(CMAKE_SYSTEM_NAME STREQUAL "Darwin")
     endif()
   endif()
 elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
-  # VGF depends on Vulkan in the pybind flow.
-  set_overridable_option(
-    EXECUTORCH_BUILD_VULKAN ${_executorch_pybind_enable_vgf}
-  )
   set_overridable_option(EXECUTORCH_BUILD_VGF ${_executorch_pybind_enable_vgf})
   set_overridable_option(EXECUTORCH_BUILD_COREML ON)
   set_overridable_option(EXECUTORCH_BUILD_EXTENSION_TRAINING ON)