Remove PatternFly workaround from build.js

Since patternfly/patternfly-react#8864 has been
merged and released by the PatternFly project, we should be able to
drop this workaround from our build.js file.

ui/webui/build.js

@@ -83,13 +83,6 @@ const context = await esbuild.context({
  { from: ['./src/index.html'], to: ['./index.html'] },
  ]
  }),
- replace({
- include: /DataList.js$/,
- values: {
- 'import stylesGrid': "// HACK: revert when https://github.com/patternfly/patternfly-react/pull/8864 is released",
- stylesGrid: 'styles',
- }
- }),
  sassPlugin({
  loadPaths: [...nodePaths, 'node_modules'],
  quietDeps: true,