* [misc] Remove useless codes.

module/doc/js/browsetemplate.ui.js

@@ -70,16 +70,6 @@ function getTableOptions(options, info)
     return options;
 }
 
-/**
- * Replace all emoji to ?? to prevent data loss in mysql.
- * 替换所有表情符号为 ?? 以防止 mysql 数据丢失。
- */
-function removeEmoji(text)
-{
-    if(typeof text !== 'string') return text;
-    return text.replace(/[\u{1f300}-\u{1f5ff}\u{1f900}-\u{1f9ff}\u{1f600}-\u{1f64f}\u{1f680}-\u{1f6ff}\u{2600}-\u{26ff}\u{2700}-\u{27bf}\u{1f1e6}-\u{1f1ff}\u{1f191}-\u{1f251}\u{1f004}\u{1f0cf}\u{1f170}-\u{1f171}\u{1f17e}-\u{1f17f}\u{1f18e}\u{3030}\u{2b50}\u{2b55}\u{2934}-\u{2935}\u{2b05}-\u{2b07}\u{2b1b}-\u{2b1c}\u{3297}\u{3299}\u{303d}\u{00a9}\u{00ae}\u{2122}\u{23f3}\u{24c2}\u{23e9}-\u{23ef}\u{25b6}\u{23f8}-\u{23fa}]/ug, '??');
-}
-
 function mergeDocFormData(doc, formData)
 {
     if(!doc || !formData) return;
@@ -187,8 +177,8 @@ function submitNewDoc(doc, spaceID, libID, moduleID, formData, afterCreate)
     const url       = $.createLink('doc', 'createTemplate', `libID=${libID}&moduleID=${moduleID}`);
     const docData   =
     {
-        rawContent  : removeEmoji(doc.content),
-        content     : removeEmoji(doc.html),
+        rawContent  : doc.content,
+        content     : doc.html,
         status      : doc.status || 'normal',
         contentType : doc.contentType,
         type        : 'text',
@@ -280,7 +270,7 @@ function handleSaveDoc(doc)
     const moduleID  = docApp.signals.moduleID.value;
     const url       = $.createLink('doc', 'editTemplate', `docID=${doc.id}`);
     const docData   = {
-        rawContent : removeEmoji(doc.content),
+        rawContent : doc.content,
         status     : doc.status || 'normal',
         contentType: doc.contentType,
         type       : 'text',
@@ -289,7 +279,7 @@ function handleSaveDoc(doc)
         title      : doc.title,
         keywords   : doc.keywords,
         acl        : doc.acl,
-        content    : removeEmoji(doc.html),
+        content    : doc.html,
         space      : spaceType,
         uid        : (doc.uid || `doc${doc.id}`),
     };