Remove closure compile hack when running npm ci (#1541)

See
https://chromium.googlesource.com/emscripten-releases/+/2ee2f60605a7774b4e194c235e372c29973038ab

emsdk.py

@@ -1260,77 +1260,15 @@ def emscripten_npm_install(tool, directory):
   env = os.environ.copy()
   env["PATH"] = node_path + os.pathsep + env["PATH"]
   print('Running post-install step: npm ci ...')
-  # Do a --no-optional install to avoid bloating disk size:
-  # https://github.com/emscripten-core/emscripten/issues/12406
   try:
     subprocess.check_output(
-        [npm, 'ci', '--production', '--no-optional'],
+        [npm, 'ci', '--production'],
         cwd=directory, stderr=subprocess.STDOUT, env=env,
         universal_newlines=True)
   except subprocess.CalledProcessError as e:
     errlog('Error running %s:\n%s' % (e.cmd, e.output))
     return False
 
-  # Manually install the appropriate native Closure Compiler package
-  # This is currently needed because npm ci would install the packages
-  # for Closure for all platforms, adding 180MB to the download size
-  # There are two problems here:
-  #   1. npm ci does not consider the platform of optional dependencies
-  #      https://github.com/npm/cli/issues/558
-  #   2. A bug with the native compiler has bloated the packages from
-  #      30MB to almost 300MB
-  #      https://github.com/google/closure-compiler-npm/issues/186
-  # If either of these bugs are fixed then we can remove this exception
-  # See also https://github.com/google/closure-compiler/issues/3925
-  closure_compiler_native = ''
-  if LINUX and ARCH in ('x86', 'x86_64'):
-    closure_compiler_native = 'google-closure-compiler-linux'
-  if MACOS and ARCH in ('x86', 'x86_64'):
-    closure_compiler_native = 'google-closure-compiler-osx'
-  if WINDOWS and ARCH == 'x86_64':
-    closure_compiler_native = 'google-closure-compiler-windows'
-
-  if closure_compiler_native:
-    # Check which version of native Closure Compiler we want to install via npm.
-    # (npm install command has this requirement that we must explicitly tell the pinned version)
-    try:
-      closure_version = json.load(open(os.path.join(directory, 'package.json')))['dependencies']['google-closure-compiler']
-    except KeyError as e:
-      # The target version of Emscripten does not (did not) have a package.json that would contain google-closure-compiler. (fastcomp)
-      # Skip manual native google-closure-compiler installation there.
-      print(str(e))
-      print('Emscripten version does not have a npm package.json with google-closure-compiler dependency, skipping native google-closure-compiler install step')
-      return True
-
-    closure_compiler_native += '@' + closure_version
-    print('Running post-install step: npm install', closure_compiler_native)
-    try:
-      subprocess.check_output(
-        [npm, 'install', '--production', '--no-optional', closure_compiler_native],
-        cwd=directory, stderr=subprocess.STDOUT, env=env,
-        universal_newlines=True)
-
-      # Installation of native Closure compiler was successful, so remove import of Java Closure Compiler module to avoid
-      # a Java dependency.
-      compiler_filename = os.path.join(directory, 'node_modules', 'google-closure-compiler', 'lib', 'node', 'closure-compiler.js')
-      if os.path.isfile(compiler_filename):
-        old_js = open(compiler_filename, 'r').read()
-        new_js = old_js.replace("require('google-closure-compiler-java')", "''/*require('google-closure-compiler-java') XXX Removed by Emsdk*/")
-        if old_js == new_js:
-          raise Exception('Failed to patch google-closure-compiler-java dependency away!')
-        open(compiler_filename, 'w').write(new_js)
-
-        # Now that we succeeded to install the native version and patch away the Java dependency, delete the Java version
-        # since that takes up ~12.5MB of installation space that is no longer needed.
-        # This process is currently a little bit hacky, see https://github.com/google/closure-compiler/issues/3926
-        remove_tree(os.path.join(directory, 'node_modules', 'google-closure-compiler-java'))
-        print('Removed google-closure-compiler-java dependency.')
-      else:
-        errlog('Failed to patch away google-closure-compiler Java dependency. ' + compiler_filename + ' does not exist.')
-    except subprocess.CalledProcessError as e:
-      errlog('Error running %s:\n%s' % (e.cmd, e.output))
-      return False
-
   print('Done running: npm ci')
 
   if os.path.isfile(os.path.join(directory, 'bootstrap.py')):