browserlist: cleanup

Change-Id: Iae59c7b435a4689a1ba6e96cfe3ceccb6bb7a2b3
diff --git a/client/package.json b/client/package.json
index df27980..56ad635 100644
--- a/client/package.json
+++ b/client/package.json
@@ -39,8 +39,7 @@
   "browserslist": {
     "production": [
       ">0.2%",
-      "not dead",
-      "not op_mini all"
+      "not dead"
     ],
     "development": [
       "last 1 chrome version",
diff --git a/client/webpack.config.js b/client/webpack.config.js
index eb5c8b9..f3b38cd 100644
--- a/client/webpack.config.js
+++ b/client/webpack.config.js
@@ -38,7 +38,6 @@
                         presets: [['@babel/preset-env', {
                             useBuiltIns: 'entry',
                             corejs:{ version: "3.10", proposals: true },
-                            targets: { esmodules: true }
                         }], '@babel/preset-react']
                     }
                 }