delete duplicated set_team fcn

game_display and display versions of set_team were identical, in
header and in implementation, so we simply delete the game_display
one, as a strict refactor.

src/game_display.cpp

@@ -991,25 +991,6 @@ void game_display::send_notification(const std::string& /*owner*/, const std::st
 #endif
 }
 
-void game_display::set_team(size_t teamindex, bool show_everything)
-{
-	assert(teamindex < dc_->teams().size());
-	currentTeam_ = teamindex;
-	if (!show_everything)
-	{
-		labels().set_team(&dc_->teams()[teamindex]);
-		viewpoint_ = &dc_->teams()[teamindex];
-	}
-	else
-	{
-		labels().set_team(NULL);
-		viewpoint_ = NULL;
-	}
-	labels().recalculate_labels();
-	if(boost::shared_ptr<wb::manager> w = wb_.lock())
-		w->on_viewer_change(teamindex);
-}
-
 void game_display::set_playing_team(size_t teamindex)
 {
 	assert(teamindex < dc_->teams().size());

src/game_display.hpp

@@ -237,7 +237,6 @@ class game_display : public display
 	 * Data from this team will be displayed in the game status.
 	 * set_playing_team sets the team whose turn it currently is
 	 */
-	void set_team(size_t team, bool observe=false);
 	void set_playing_team(size_t team);