fix(cd): remove demo and staging workflows

.github/workflows/cd_heroku.yml

@@ -1,18 +0,0 @@
-name: cd-heroku
-
-on:
-  release:
-    types: [published]
-  workflow_dispatch: {}
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.12.12 # This is the action
-        with:
-          heroku_api_key: ${{secrets.HEROKU_API_KEY}}
-          heroku_app_name: "hexxa-quickshare"
-          heroku_email: "hexxa@outlook.com"
-          usedocker: true

.github/workflows/cd_heroku_staging.yml

@@ -1,21 +0,0 @@
-name: cd-heroku-staging
-
-on:
-  pull_request:
-    branches: [main]
-  workflow_dispatch: {}
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    environment:
-      name: staging
-      url: https://hexxa-quickshare-staging.herokuapp.com/
-    steps:
-      - uses: actions/checkout@v2
-      - uses: akhileshns/heroku-deploy@v3.12.12 # This is the action
-        with:
-          heroku_api_key: ${{secrets.HEROKU_API_KEY}}
-          heroku_app_name: "hexxa-quickshare-staging"
-          heroku_email: "hexxa@outlook.com"
-          usedocker: true

README.md

@@ -14,10 +14,6 @@
   </a>
 <p>
 
-This is a [demo on Heroku](https://hexxa-quickshare.herokuapp.com/).
-
-(User is `demo`, password is `Quicksh@re`, uploading/downloading speed is limited to around 100KB.)
-
 <image src="./docs/imgs/v0.9.1/quickshare_1920.gif" title="preview">
 
 

docs/README_zh-cn.md

@@ -14,10 +14,6 @@
   </a>
 <p>
 
-这是一个 [Heroku 上的演示](https://hexxa-quickshare.herokuapp.com/).
-
-(用户名是 `demo`, 密码是 `Quicksh@re`, 上传/下载速度被限制在大约 100KB.)
-
 <image src="./imgs/v0.9.1/quickshare_1920.gif" title="preview">
 
 [English](../README.md) | 简体中文