[MIRROR] Fixes the benches' appearance and odd sitting offset [MDB IGNORE] (#19338)

* Fixes the benches' appearance and odd sitting offset (#73397)

## About The Pull Request
Introduced in https://github.com/tgstation/tgstation/pull/73057,
undocumented, was a change in the offset of players sitting in benches,
which just made it look like if everyone was standing on benches, rather
than sitting on them. I can understand the original goal behind that
change (after discussing with LT3 about it), but I still think that, for
one direction where it might _arguably_ look better, _every_ other
direction looks absolutely awful, and goes against the norm when it
comes to sitting on an chair/sofa/anything you can buckle onto that
serves as a place to sit.

Introduced in https://github.com/tgstation/tgstation/pull/73243,
undocumented, was a new color for benches that just made them look blue
rather than the brown they were meant to be. I'm returning them to their
prior color, as I think that it fits a lot better in its surroundings in
light brown than it did with dirty blue.

This fixes both of these issues, bringing the benches back to
consistency with the rest.

## Why It's Good For The Game
It just looks more consistent with everything else.

![image](https://user-images.githubusercontent.com/58045821/218340276-ee42d15b-fc54-4e56-b565-164b8a8b4db2.png)

## Changelog

🆑 GoldenAlpharex
fix: Sitting on benches no longer gives you a weird offset that makes
you look like you're standing on them.
fix: Returns benches to their original light brown color, rather than
the middle between brown and cyan that they were at for a bit.
/🆑

* Fixes the benches' appearance and odd sitting offset

---------

Co-authored-by: GoldenAlpharex <58045821+GoldenAlpharex@users.noreply.github.com>

code/game/objects/structures/beds_chairs/sofa.dm

@@ -100,7 +100,7 @@ COLORED_SOFA(/obj/structure/chair/sofa, maroon, SOFA_MAROON)
 	desc = "Perfectly designed to be comfortable to sit on, and hellish to sleep on."
 	icon_state = "bench_middle"
 	greyscale_config = /datum/greyscale_config/bench_middle
-	greyscale_colors = "#2E668A"
+	greyscale_colors = "#af7d28"
 
 /obj/structure/chair/sofa/bench/left
 	icon_state = "bench_left"
@@ -118,14 +118,6 @@ COLORED_SOFA(/obj/structure/chair/sofa, maroon, SOFA_MAROON)
 	icon_state = "bench_solo"
 	greyscale_config = /datum/greyscale_config/bench_solo
 
-/obj/structure/chair/sofa/bench/post_buckle_mob(mob/living/Mob)
-	if(src.dir == EAST || WEST)
-		Mob.pixel_y += 6
-	.=..()
-
-/obj/structure/chair/sofa/bench/post_unbuckle_mob(mob/living/Mob)
-	if(src.dir == EAST || WEST)
-		Mob.pixel_y -= 6
 
 // Bamboo benches
 /obj/structure/chair/sofa/bamboo