Replace request-promise with node-fetch (#7899)

`node-fetch` is a smaller and simpler project than `request-promise`,
and we already have it as a transitive dependency.

`request-promise` was also incorrectly listed as a production
dependency. `node-fetch` has been added as a `devDependency` to replace
it, as it was only used in one CI script.

development/metamaskbot-build-announce.js

@@ -1,7 +1,7 @@
 #!/usr/bin/env node
 const { promises: fs } = require('fs')
 const path = require('path')
-const request = require('request-promise')
+const fetch = require('node-fetch')
 const VERSION = require('../dist/chrome/manifest.json').version // eslint-disable-line import/no-unresolved
 
 start().catch(console.error)
@@ -152,14 +152,15 @@ async function start () {
   console.log(`Announcement:\n${commentBody}`)
   console.log(`Posting to: ${POST_COMMENT_URI}`)
 
-  await request({
+  const response = await fetch(POST_COMMENT_URI, {
     method: 'POST',
-    uri: POST_COMMENT_URI,
     body: JSON_PAYLOAD,
     headers: {
       'User-Agent': 'metamaskbot',
       'Authorization': `token ${GITHUB_COMMENT_TOKEN}`,
     },
   })
-
+  if (!response.ok) {
+    throw new Error(`Post comment failed with status '${response.statusText}'`)
+  }
 }

package.json

@@ -171,7 +171,6 @@
     "redux": "^3.0.5",
     "redux-logger": "^3.0.6",
     "redux-thunk": "^2.2.0",
-    "request-promise": "^4.2.1",
     "reselect": "^3.0.1",
     "rpc-cap": "^1.0.1",
     "safe-event-emitter": "^1.0.1",
@@ -272,6 +271,7 @@
     "mocha-jsdom": "^1.1.0",
     "mocha-sinon": "^2.0.0",
     "nock": "^9.0.14",
+    "node-fetch": "^2.6.0",
     "node-sass": "^4.12.0",
     "nyc": "^13.0.0",
     "path": "^0.12.7",

yarn.lock

@@ -23773,16 +23773,6 @@ request-promise-native@^1.0.3:
     stealthy-require "^1.1.0"
     tough-cookie ">=2.3.3"
 
-request-promise@^4.2.1:
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/request-promise/-/request-promise-4.2.2.tgz#d1ea46d654a6ee4f8ee6a4fea1018c22911904b4"
-  integrity sha1-0epG1lSm7k+O5qT+oQGMIpEZBLQ=
-  dependencies:
-    bluebird "^3.5.0"
-    request-promise-core "1.1.1"
-    stealthy-require "^1.1.0"
-    tough-cookie ">=2.3.3"
-
 request@^2.45.0, request@^2.81.0, request@^2.83.0:
   version "2.87.0"
   resolved "https://registry.yarnpkg.com/request/-/request-2.87.0.tgz#32f00235cd08d482b4d0d68db93a829c0ed5756e"