do not use single process in chromium

packages/content-fetch/Dockerfile-gcf

@@ -14,7 +14,6 @@ RUN apk add --no-cache \
     make \
     python3
 
-# Run everything after as non-privileged user.
 WORKDIR /app
 
 ENV CHROMIUM_PATH /usr/bin/chromium-browser

packages/puppeteer-parse/index.js

@@ -126,7 +126,6 @@ const getBrowserPromise = (async () => {
       '--no-zygote',
       '--use-gl=swiftshader',
       '--window-size=1920,1080',
-      process.env.LAUNCH_HEADLESS ? '--single-process' : '--start-maximized',
     ].filter((item) => !!item),
     defaultViewport: {
       deviceScaleFactor: 1,

packages/readabilityjs/test/generate-testcase.js

@@ -121,7 +121,6 @@ async function fetchSource(url, callbackFn) {
       '--no-zygote',
       '--use-gl=swiftshader',
       '--window-size=1920,1080',
-      process.env.LAUNCH_HEADLESS ? '--single-process' : '--start-maximized',
     ],
     defaultViewport: {
       deviceScaleFactor: 1,