Remove configureLanguageServiceBuild/createLanguageServiceBuild

The filename and the task mismatched, so this script was never
technically runnable as expected, and I don't think anyone was actually
using it.

Author: jakebailey

Diff for: Gulpfile.js

@@ -657,10 +657,6 @@ const configureExperimental = () => exec(process.execPath, ["scripts/configurePr
 task("configure-experimental", series(buildScripts, configureExperimental));
 task("configure-experimental").description = "Runs scripts/configurePrerelease.ts to prepare a build for experimental publishing";
 
-const createLanguageServicesBuild = () => exec(process.execPath, ["scripts/createLanguageServicesBuild.js"]);
-task("create-language-services-build", series(buildScripts, createLanguageServicesBuild));
-task("create-language-services-build").description = "Runs scripts/createLanguageServicesBuild.ts to prepare a build which only has the require('typescript') JS.";
-
 const publishNightly = () => exec("npm", ["publish", "--tag", "next"]);
 task("publish-nightly", series(task("clean"), task("LKG"), task("clean"), task("runtests-parallel"), publishNightly));
 task("publish-nightly").description = "Runs `npm publish --tag next` to create a new nightly build on npm";