build: remove no longer needed arg for siso (#48164)

* build: remove no longer needed arg for siso

* chore: test ffmpeg zip

* build: fix ffmpeg build with siso

* Revert "chore: test ffmpeg zip"

This reverts commit 2bbcc86039.

.github/actions/build-electron/action.yml

@@ -202,7 +202,7 @@ runs:
       if: ${{ inputs.is-release == 'true' }}
       run: |
         cd src
-        gn gen out/ffmpeg --args="import(\"//electron/build/args/ffmpeg.gn\") use_remoteexec=true $GN_EXTRA_ARGS"
+        gn gen out/ffmpeg --args="import(\"//electron/build/args/ffmpeg.gn\") use_remoteexec=true use_siso=true $GN_EXTRA_ARGS"
         e build --target electron:electron_ffmpeg_zip -C ../../out/ffmpeg
     - name: Generate Hunspell Dictionaries ${{ inputs.step-suffix }}
       shell: bash

build/args/all.gn

@@ -69,7 +69,3 @@ v8_expose_public_symbols = true
 # Disable snapshotting a page when printing for its content to be analyzed for
 # sensitive content by enterprise users.
 enterprise_cloud_content_analysis = false
-
-# Disable siso until we are ready to use it.
-# https://chromium-review.googlesource.com/c/chromium/src/+/6638830
-use_siso = false