Revert "feat: Native emoji w/ image-based fallbacks and improved pars…

…ing (#1746)"

This reverts commit d50d1a1.

.codesandbox/ci.json

@@ -1,5 +1,4 @@
 {
   "sandboxes": ["2d17z"],
-  "packages": [".", "packages/docsify-server-renderer"],
-  "node": "16"
+  "packages": [".", "packages/docsify-server-renderer"]
 }

docs/_sidebar.md

@@ -13,7 +13,6 @@
   - [Write a Plugin](write-a-plugin.md)
   - [Markdown configuration](markdown.md)
   - [Language highlighting](language-highlight.md)
-  - [Emoji](emoji.md)
 
 - Guide
 

docs/configuration.md

@@ -16,7 +16,7 @@ The config can also be defined as a function, in which case the first argument i
 
 ```html
 <script>
-  window.$docsify = function (vm) {
+  window.$docsify = function(vm) {
     return {
       markdown: {
         renderer: {
@@ -319,14 +319,14 @@ window.$docsify = {
   markdown: {
     smartypants: true,
     renderer: {
-      link: function () {
+      link: function() {
         // ...
       },
     },
   },
 
   // function
-  markdown: function (marked, renderer) {
+  markdown: function(marked, renderer) {
     // ...
     return marked;
   },
@@ -398,97 +398,19 @@ window.$docsify = {
 
 Note that if you are running an external script, e.g. an embedded jsfiddle demo, make sure to include the [external-script](plugins.md?id=external-script) plugin.
 
-## nativeEmoji
-
-- type: `Boolean`
-- default: `false`
-
-Render emoji shorthand codes using GitHub-style emoji images or platform-native emoji characters.
-
-```js
-window.$docsify = {
-  nativeEmoji: true,
-};
-```
-
-```markdown
-:smile:
-:partying_face:
-:joy:
-:+1:
-:-1:
-```
-
-GitHub-style images when `false`:
-
-<output data-lang="output">
-  <img class="emoji" src="https://github.githubassets.com/images/icons/emoji/unicode/1f604.png" alt="smile">
-  <img class="emoji" src="https://github.githubassets.com/images/icons/emoji/unicode/1f973.png" alt="partying_face">
-  <img class="emoji" src="https://github.githubassets.com/images/icons/emoji/unicode/1f602.png" alt="joy">
-  <img class="emoji" src="https://github.githubassets.com/images/icons/emoji/unicode/1f44d.png" alt="+1">
-  <img class="emoji" src="https://github.githubassets.com/images/icons/emoji/unicode/1f44e.png" alt="-1">
-</output>
-
-Platform-native characters when `true`:
-
-<output data-lang="output">
-  <span class="emoji">😄︎</span>
-  <span class="emoji">🥳︎</span>
-  <span class="emoji">😂︎</span>
-  <span class="emoji">👍︎</span>
-  <span class="emoji">👎︎</span>
-</output>
-
-To render shorthand codes as text, replace `:` characters with the `&colon;` HTML entity.
-
-```markdown
-&colon;100&colon;
-```
-
-<output data-lang="output">
-
-&colon;100&colon;
-
-</output>
-
 ## noEmoji
 
 - type: `Boolean`
-- default: `false`
 
-Disabled emoji parsing and render all emoji shorthand as text.
+Disabled emoji parse.
 
 ```js
 window.$docsify = {
   noEmoji: true,
 };
 ```
 
-```markdown
-:100:
-```
-
-<output data-lang="output">
-
-&colon;100&colon;
-
-</output>
-
-To disable emoji parsing of individual shorthand codes, replace `:` characters with the `&colon;` HTML entity.
-
-```markdown
-:100:
-
-&colon;100&colon;
-```
-
-<output data-lang="output">
-
-:100:
-
-&colon;100&colon;
-
-</output>
+?> If this option is `false` but you don't want to emojify some specific colons, [refer to this](https://github.com/docsifyjs/docsify/issues/742#issuecomment-586313143)
 
 ## mergeNavbar
 
@@ -513,7 +435,7 @@ See https://github.com/lukeed/tinydate#patterns
 window.$docsify = {
   formatUpdated: '{MM}/{DD} {HH}:{mm}',
 
-  formatUpdated: function (time) {
+  formatUpdated: function(time) {
     // ...
 
     return time;