Fix agent reading and editing files over SSH (#30144)

Release Notes:

- Fixed a bug that would prevent the agent from working over SSH.

---------

Co-authored-by: Nathan Sobo <nathan@zed.dev>
Co-authored-by: Richard Feldman <oss@rtfeldman.com>
Co-authored-by: Max Brunsfeld <maxbrunsfeld@gmail.com>
Co-authored-by: Cole Miller <m@cole-miller.net>

crates/assistant_settings/src/assistant_settings.rs

@@ -106,11 +106,6 @@ impl AssistantSettings {
             .and_then(|m| m.temperature)
     }
 
-    pub fn stream_edits(&self, _cx: &App) -> bool {
-        // TODO: Remove the `stream_edits` setting.
-        true
-    }
-
     pub fn are_live_diffs_enabled(&self, _cx: &App) -> bool {
         false
     }