Continues using workspaces for install

Signed-off-by: Tyler Smalley <tyler.smalley@elastic.co>

x-pack/tasks/build.js

@@ -6,8 +6,7 @@
 
 import del from 'del';
 import { resolve } from 'path';
-import { writeFileSync, readFileSync } from 'fs';
-import { getProjects, getProjectPaths } from '@kbn/pm';
+import { writeFileSync } from 'fs';
 import pluginHelpers from '@kbn/plugin-helpers';
 import { ToolingLog } from '@kbn/dev-utils';
 import { generateNoticeFromSource } from '../../src/dev';
@@ -56,21 +55,5 @@ export default (gulp, { buildTarget }) => {
         directory: buildRoot
       })
     );
-
-    // removes Kibana packages to allow for installation of dependencies
-    // which are not included in the Yarn workspace
-    const kibanaRoot = resolve(__dirname, '../..');
-    const projectPaths = getProjectPaths(kibanaRoot);
-    const projects = await getProjects(kibanaRoot, projectPaths);
-    const pkg = JSON.parse(readFileSync(resolve(buildRoot, 'package.json')));
-
-    pkg.dependencies = Object.keys(pkg.dependencies)
-      .filter((d) => !projects.has(d))
-      .reduce((obj, d) => {
-        obj[d] = pkg.dependencies[d];
-        return obj;
-      }, {});
-
-    writeFileSync(resolve(buildRoot, 'package.json'), JSON.stringify(pkg, null, 2));
   });
 };