[CQ] remove redundant method declarations (#8135)

Removes method declarations that are identical to an overridden super.



![image](https://github.com/user-attachments/assets/cf4d95c9-c257-4acb-8387-7daeaa680cc2)


---

- [x] I’ve reviewed the contributor guide and applied the relevant
portions to this PR.

<details>
  <summary>Contribution guidelines:</summary><br>

- See our [contributor
guide]([https://github.com/dart-lang/sdk/blob/main/CONTRIBUTING.md](https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview)
for general expectations for PRs.
- Larger or significant changes should be discussed in an issue before
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([discussion](#8098)).
</details>

Author: pq

flutter-idea/src/io/flutter/sdk/FlutterSettingsConfigurable.java

@@ -174,12 +174,6 @@ public String getId() {
     return FlutterConstants.FLUTTER_SETTINGS_PAGE_ID;
   }
 
-  @Nullable
-  @Override
-  public Runnable enableSearch(String s) {
-    return null;
-  }
-
   @Nullable
   @Override
   public JComponent createComponent() {
@@ -448,11 +442,6 @@ private void updateVersionTextIfCurrent(@NotNull FlutterSdk sdk, @NotNull String
     }
   }
 
-  @Override
-  public void disposeUIResources() {
-
-  }
-
   @Override
   @Nls
   public String getDisplayName() {

flutter-idea/src/io/flutter/utils/FileWatch.java

@@ -252,10 +252,6 @@ void enable(boolean enabled) {
       }
     }
 
-    @Override
-    public void before(@NotNull List<? extends VFileEvent> events) {
-    }
-
     @Override
     public void after(@NotNull List<? extends VFileEvent> events) {
       final Set<FileWatch> todo = new LinkedHashSet<>();