[refactoring] Remove duplicate team heading

Author: g3force

src/App.vue

@@ -6,13 +6,15 @@
         </div>
         <div id="main-elements">
             <div class="team-container">
+                <h2>Yellow Team</h2>
                 <TeamOverview class="team-views" team-color="Yellow"/>
                 <ControlTeam class="team-views" team-color="Yellow"/>
             </div>
             <div id="field">
                 <iframe src="http://localhost:8082/" frameborder="none"></iframe>
             </div>
             <div class="team-container">
+                <h2>Blue Team</h2>
                 <TeamOverview class="team-views" team-color="Blue"/>
                 <ControlTeam class="team-views" team-color="Blue"/>
             </div>

src/components/control/ControlTeam.vue

@@ -1,6 +1,5 @@
 <template>
     <div class="control-team">
-        <h2>Team {{teamColor}}</h2>
         <span v-b-tooltip.hover
               :title="'Prepare for a kickoff (' + Object.keys(keymapKickoff)[0] + ')'">
         <b-button v-hotkey="keymapKickoff"

src/components/team/TeamOverview.vue

@@ -1,6 +1,5 @@
 <template>
     <div>
-        <h2 v-b-tooltip.hover title="Edit team data by double-clicking a value"> Team {{teamColor}}</h2>
         <div class="content">
             <div>
                 <TeamName