Removes widescreen config (#91419)

19x15 forever, or 15x15 if you're non widescreen user.

Idek why this is a config

code/modules/client/client_procs.dm

@@ -572,7 +572,7 @@ GLOBAL_LIST_INIT(blacklisted_builds, list(
 
 	loot_panel = new(src)
 
-	view_size = new(src, getScreenSize(prefs.read_preference(/datum/preference/toggle/widescreen)))
+	view_size = new(src)
 	set_fullscreen(logging_in = TRUE)
 	view_size.resetFormat()
 	view_size.setZoomMode()

code/modules/client/preferences/screen.dm

@@ -4,7 +4,7 @@
 	savefile_identifier = PREFERENCE_PLAYER
 
 /datum/preference/toggle/widescreen/apply_to_client(client/client, value)
-	client.view_size?.setDefault(getScreenSize(value))
+	client.view_size?.setDefault(VIEWPORT_USE_PREF)
 
 /datum/preference/toggle/fullscreen_mode
 	default_value = FALSE