Fix multi-key shortcuts (#4025)

An old fix was ported over from gpui1, and the two fixes could not exist
side-by-side. Delete this code and let the keymap handle it

Release Notes:

- (Added|Fixed|Improved) ...
([#<public_issue_number_if_exists>](https://github.com/zed-industries/community/issues/<public_issue_number_if_exists>)).

crates/gpui/src/platform/mac/window.rs

@@ -1095,37 +1095,7 @@ extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent:
                         .flatten()
                         .is_some();
                 if !is_composing {
-                    // if the IME has changed the key, we'll first emit an event with the character
+                    handled = callback(InputEvent::KeyDown(event));
-                    // generated by the IME system; then fallback to the keystroke if that is not
-                    // handled.
-                    // cases that we have working:
-                    // - " on a brazillian layout by typing <quote><space>
-                    // - ctrl-` on a brazillian layout by typing <ctrl-`>
-                    // - $ on a czech QWERTY layout by typing <alt-4>
-                    // - 4 on a czech QWERTY layout by typing <shift-4>
-                    // - ctrl-4 on a czech QWERTY layout by typing <ctrl-alt-4> (or <ctrl-shift-4>)
-                    if ime_text.is_some() && ime_text.as_ref() != Some(&event.keystroke.key) {
-                        let event_with_ime_text = KeyDownEvent {
-                            is_held: false,
-                            keystroke: Keystroke {
-                                // we match ctrl because some use-cases need it.
-                                // we don't match alt because it's often used to generate the optional character
-                                // we don't match shift because we're not here with letters (usually)
-                                // we don't match cmd/fn because they don't seem to use IME
-                                modifiers: Default::default(),
-                                key: ime_text.clone().unwrap(),
-                                ime_key: None,
-                            },
-                        };
-                        handled = callback(InputEvent::KeyDown(event_with_ime_text));
-                    }
-                    if !handled {
-                        // empty key happens when you type a deadkey in input composition.
-                        // (e.g. on a brazillian keyboard typing quote is a deadkey)
-                        if !event.keystroke.key.is_empty() {
-                            handled = callback(InputEvent::KeyDown(event));
-                        }
-                    }
                 }
 
                 if !handled {