current username checked && refactor && remove players in channel when they are more than 2

src/Mine/SeekerBundle/Resources/public/js/mine-seeker/user/user-control.js

@@ -42,7 +42,6 @@ class UserControl extends React.Component {
             <div className="users">
                 <User ref="blue"
                       color="blue"
-                      name={this.props.blue}
                       active={this.state.activePlayer === 1}
                       onClickBombSelector={this.onClickBombSelector.bind(this, 1)}/>
                 <div className="active-mines-container">
@@ -56,7 +55,6 @@ class UserControl extends React.Component {
                 <div className="clear"></div>
                 <User ref="red"
                       color="red"
-                      name={this.props.red}
                       active={this.state.activePlayer === 0}
                       onClickBombSelector={this.onClickBombSelector.bind(this, 0)}/>
                 <div className="resign">