Modify rover base-template to not reset pantilt when joystick released

Author: angusjfw

pitop/labs/web/blueprints/rover/templates/base-rover.html

@@ -7,7 +7,6 @@
     {% if g.show_left_joystick %}
       <joystick-component
         onmove="publish({ type: 'left_joystick', data })"
-        onend="publish({ type: 'left_joystick', data })"
       > </joystick-component>
     {% endif %}