Revert "Add a way to toggle inlay hints with modifiers" (#25764)

This PR caused inlay hints to show on every modifiers press

Reverts zed-industries/zed#25752

Release Notes:

- N/A

crates/editor/src/editor.rs

@@ -711,7 +711,6 @@ pub struct Editor {
     edit_prediction_indent_conflict: bool,
     edit_prediction_requires_modifier_in_indent_conflict: bool,
     inlay_hint_cache: InlayHintCache,
-    inlay_hint_modifiers_toggled: bool,
     next_inlay_id: usize,
     _subscriptions: Vec<Subscription>,
     pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
@@ -1420,7 +1419,6 @@ impl Editor {
                 released_too_fast: false,
             },
             inline_diagnostics_enabled: mode == EditorMode::Full,
-            inlay_hint_modifiers_toggled: false,
             inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
 
             gutter_hovered: false,
@@ -3693,9 +3691,6 @@ impl Editor {
         );
         let (invalidate_cache, required_languages) = match reason {
             InlayHintRefreshReason::Toggle(enabled) => {
-                if self.inlay_hint_cache.enabled == enabled {
-                    return;
-                }
                 self.inlay_hint_cache.enabled = enabled;
                 if enabled {
                     (InvalidationStrategy::RefreshRequested, None)