docs(examples): remove outdated Webpack examples

.eslintignore

@@ -1,5 +1,4 @@
 coverage/*
 dist/*
 docs/dist/*
-examples/webpack3/scripts/*
 tmp/*

docs/src/pages/Usage.mdx

@@ -121,88 +121,6 @@ example recipes with some of them. You can use these as a starting point for you
         </Tab.Pane>
       ),
     },
-    {
-      menuItem: 'Webpack 2/3',
-      render: () => (
-        <Tab.Pane style={{ fontSize: 'inherit' }}>
-          <p>
-            Semantic UI React is fully supported by Webpack 2 and 3, including tree shaking as of{' '}
-            <code>[email protected]</code>.
-          </p>
-          <p>
-            Please ensure that you build your app in production mode before release. Semantic UI
-            React includes several optimizations in production mode, such as stripping `propTypes`
-            from your build.
-          </p>
-          <Header as='h4'>Examples</Header>
-          <List>
-            <List.Item
-              icon='github'
-              content='Webpack 3 Example Project'
-              href='https://github.com/Semantic-Org/Semantic-UI-React/tree/master/examples/webpack3'
-              rel='noopener noreferrer'
-              target='_blank'
-            />
-            <List.Item
-              icon='github'
-              content='Webpack 3 Example .babelrc'
-              href='https://github.com/Semantic-Org/Semantic-UI-React/tree/master/examples/webpack3/.babelrc'
-              rel='noopener noreferrer'
-              target='_blank'
-            />
-            <List.Item
-              icon='github'
-              content='babel-plugin-lodash'
-              href='https://github.com/lodash/babel-plugin-lodash'
-              rel='noopener noreferrer'
-              target='_blank'
-            />
-          </List>
-          <Divider horizontal section>
-            Known Issues
-          </Divider>
-          <p>
-            Webpack 2/3 tree shaking does not completely remove unused exports, there are numerous
-            issues that are long-standing bugs:
-          </p>
-          <List>
-            <List.Item
-              icon='github'
-              href='https://github.com/webpack/webpack/issues/1750'
-              rel='noopener noreferrer'
-              target='_blank'
-              content='webpack/webpack#1750'
-            />
-            <List.Item
-              icon='github'
-              href='https://github.com/webpack/webpack/issues/2867'
-              rel='noopener noreferrer'
-              target='_blank'
-              content='webpack/webpack#2867'
-            />
-            <List.Item
-              icon='github'
-              href='https://github.com/webpack/webpack/issues/2899'
-              rel='noopener noreferrer'
-              target='_blank'
-              content='webpack/webpack#2899'
-            />
-            <List.Item
-              icon='github'
-              href='https://github.com/webpack/webpack/issues/3092'
-              rel='noopener noreferrer'
-              target='_blank'
-              content='webpack/webpack#3092'
-            />
-          </List>
-          <p>
-            Semantic UI React imports will be not optimized, so we recommend to use
-            <code>babel-plugin-lodash</code> in your builds. You can find example configuration in
-            <code>examples/webpack3</code> directory.
-          </p>
-        </Tab.Pane>
-      ),
-    },
   ]}
 />