diff --git a/browser/components/TagSelect.js b/browser/components/TagSelect.js
deleted file mode 100644
index 2e631bef..00000000
--- a/browser/components/TagSelect.js
+++ /dev/null
@@ -1,165 +0,0 @@
-import React, { PropTypes } from 'react'
-import ReactDOM from 'react-dom'
-import _ from 'lodash'
-
-function isNotEmptyString (str) {
-  return _.isString(str) && str.length > 0
-}
-
-export default class TagSelect extends React.Component {
-  constructor (props) {
-    super(props)
-
-    this.state = {
-      input: '',
-      isInputFocused: false
-    }
-  }
-
-  componentDidMount () {
-    this.blurInputBlurHandler = e => {
-      if (ReactDOM.findDOMNode(this.refs.tagInput) !== document.activeElement) {
-        this.setState({isInputFocused: false})
-      }
-    }
-    window.addEventListener('click', this.blurInputBlurHandler)
-  }
-
-  componentWillUnmount (e) {
-    window.removeEventListener('click', this.blurInputBlurHandler)
-  }
-
-  // Suggestは必ずInputの下に位置するようにする
-  componentDidUpdate () {
-    if (this.shouldShowSuggest()) {
-      let inputRect = ReactDOM.findDOMNode(this.refs.tagInput).getBoundingClientRect()
-      let suggestElement = ReactDOM.findDOMNode(this.refs.suggestTags)
-      if (suggestElement != null) {
-        suggestElement.style.top = inputRect.top + 20 + 'px'
-        suggestElement.style.left = inputRect.left + 'px'
-      }
-    }
-  }
-
-  shouldShowSuggest () {
-    return this.state.isInputFocused && isNotEmptyString(this.state.input)
-  }
-
-  addTag (tag, clearInput = true) {
-    let tags = this.props.tags.slice(0)
-    let newTag = tag.trim()
-
-    if (newTag.length === 0 && clearInput) {
-      this.setState({input: ''})
-      return
-    }
-
-    tags.push(newTag)
-    tags = _.uniq(tags)
-
-    if (_.isFunction(this.props.onChange)) {
-      this.props.onChange(newTag, tags)
-    }
-    if (clearInput) this.setState({input: ''})
-  }
-
-  handleKeyDown (e) {
-    switch (e.keyCode) {
-      case 8:
-        {
-          if (this.state.input.length > 0) break
-          e.preventDefault()
-
-          let tags = this.props.tags.slice(0)
-          tags.pop()
-
-          this.props.onChange(null, tags)
-        }
-        break
-      case 13:
-        {
-          e.preventDefault()
-          this.addTag(this.state.input)
-        }
-    }
-  }
-
-  handleThisClick (e) {
-    ReactDOM.findDOMNode(this.refs.tagInput).focus()
-  }
-
-  handleInputFocus (e) {
-    this.setState({isInputFocused: true})
-  }
-
-  handleItemRemoveButton (tag) {
-    return e => {
-      e.stopPropagation()
-
-      let tags = this.props.tags.slice(0)
-      tags.splice(tags.indexOf(tag), 1)
-
-      if (_.isFunction(this.props.onChange)) {
-        this.props.onChange(null, tags)
-      }
-    }
-  }
-
-  handleSuggestClick (tag) {
-    return e => {
-      this.addTag(tag)
-    }
-  }
-
-  render () {
-    let { tags, suggestTags } = this.props
-
-    let tagElements = _.isArray(tags)
-      ? this.props.tags.map(tag => (
-        <div key={tag} className='TagSelect-tags-item'>
-          <button onClick={e => this.handleItemRemoveButton(tag)(e)} className='TagSelect-tags-item-remove'><i className='fa fa-fw fa-times'/></button>
-          <div className='TagSelect-tags-item-label'>{tag}</div>
-        </div>))
-      : null
-
-    let suggestElements = this.shouldShowSuggest() ? suggestTags
-        .filter(tag => {
-          return tag.match(this.state.input)
-        })
-        .map(tag => {
-          return <button onClick={e => this.handleSuggestClick(tag)(e)} key={tag}>{tag}</button>
-        })
-      : null
-
-    return (
-      <div className='TagSelect' onClick={e => this.handleThisClick(e)}>
-        <div className='TagSelect-tags'>
-          {tagElements}
-          <input
-            type='text'
-            onKeyDown={e => this.handleKeyDown(e)}
-            ref='tagInput'
-            valueLink={this.linkState('input')}
-            placeholder='Click here to add tags'
-            className='TagSelect-input'
-            onFocus={e => this.handleInputFocus(e)}
-          />
-        </div>
-        {suggestElements != null && suggestElements.length > 0
-          ? (
-            <div ref='suggestTags' className='TagSelect-suggest'>
-              {suggestElements}
-            </div>
-          )
-          : null
-        }
-      </div>
-    )
-  }
-}
-
-TagSelect.propTypes = {
-  tags: PropTypes.arrayOf(PropTypes.string),
-  onChange: PropTypes.func,
-  suggestTags: PropTypes.array
-}