Patch for bug #18475 and #17292

Mage of Light and Sorceress Halo/animation glitchy.

src/game_display.cpp

@@ -314,7 +314,6 @@ void game_display::draw_invalidated()
 			u_it->redraw_unit();
 	}
 
-	halo::unrender(invalidated_);
 }
 
 void game_display::post_commit()

src/halo.cpp

@@ -124,12 +124,10 @@ void effect::set_location(int x, int y)
 	int new_x = x - disp->get_location_x(zero_loc);
 	int new_y = y - disp->get_location_y(zero_loc);
 	if (new_x != x_ || new_y != y_) {
-		unrender();
 		x_ = new_x;
 		y_ = new_y;
 		buffer_.assign(NULL);
 		overlayed_hexes_.clear();
-		render();
 	}
 }
 

src/halo.hpp

@@ -25,7 +25,6 @@ class display;
 namespace halo
 {
 
-
 struct manager
 {
 	manager(display& disp);