NodeGraph: Remove msagl lib and layered layout option (#87905)

* Remove msagl lib

* Change drone.yml

* update signature

scripts/drone/steps/lib.star

@@ -35,8 +35,6 @@ def yarn_install_step():
         "name": "yarn-install",
         "image": images["node"],
         "commands": [
-            # Python is needed to build `esfx`, which is needed by `msagl`
-            "apk add --update g++ make python3 && ln -sf /usr/bin/python3 /usr/bin/python",
             "yarn install --immutable || yarn install --immutable",
         ],
         "depends_on": [],

scripts/webpack/webpack.common.js

@@ -109,13 +109,6 @@ module.exports = {
         test: /(unicons|mono|custom)[\\/].*\.svg$/,
         type: 'asset/source',
       },
-      {
-        // Required for msagl library (used in Nodegraph panel) to work
-        test: /\.m?js$/,
-        resolve: {
-          fullySpecified: false,
-        },
-      },
     ],
   },
   // https://webpack.js.org/plugins/split-chunks-plugin/#split-chunks-example-3