Note --nodelay removal in changelog, remove from manpage

changelog.md

@@ -35,6 +35,7 @@
    * [modify_unit_type] can add a list of AMLAs in the unit_type, if a list is already written, it will be replaced.
    * [modify_unit_type] can modify [male/female] or [variation] subtags if already written in unit_type.
 ### Miscellaneous and Bug Fixes
+   * Removed `--nodelay` launch flag
 
 ## Version 1.19.5
 ### Campaigns
@@ -361,13 +362,13 @@
    * New dialog for entering custom schedule ID and name. The user is required to enter a non-empty schedule id and name. ID will be autogenerated if the user doesn't specify it or already exists.
    * Textbox to enter Add-on ID after selecting `New Scenario > New Add-on`.
 ### Multiplayer
-   * Fix Add-on version check error #4055 
+   * Fix Add-on version check error #4055
 ### Lua API
    * units.remove_modifications can now remove multiple types of modifications.
 ### Translations
    * Updated translations: British English, Bulgarian, Finnish, French, German, Polish, Slovak
 ### Miscellaneous and Bug Fixes
-   * Fix various assertion failures on invalid input 
+   * Fix various assertion failures on invalid input
    * Fix end credits not showing when a scenario has no [side]s #8090
    * The command line `--preprocess` utility now accepts any filename, not just those ending .cfg.
 

doc/man/wesnoth.6

@@ -192,10 +192,6 @@ load the test mp scenarios.
 .B --new-widgets
 there is a new WIP widget toolkit, this option enables it. This is very experimental, don't fill bug reports since most are known. Parts of the library are deemed stable and will work without this switch.
 .TP
-.B --nodelay
-runs the game without any delays for graphic benchmarking. This is automatically enabled by
-.BR --nogui .
-.TP
 .B --noaddons
 disables loading of user addons.
 .TP