[google_maps_flutter] removed old overrides (#4679)

Removed 2 overrides with the comment
```
// TODO(mklim): Remove this empty override once https://github.com/flutter/flutter/issues/40126 is fixed in stable.
```
As the issue was fixed in 2019

Related to https://github.com/flutter/flutter/issues/131791
diff --git a/packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md b/packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md
index 4bec0d0..d9f5486 100644
--- a/packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md
+++ b/packages/google_maps_flutter/google_maps_flutter_android/CHANGELOG.md
@@ -1,5 +1,5 @@
-## NEXT
-
+## 2.4.16
+* Removes old empty override methods.
 * Fixes unawaited_futures violations.
 
 ## 2.4.15
diff --git a/packages/google_maps_flutter/google_maps_flutter_android/android/src/main/java/io/flutter/plugins/googlemaps/GoogleMapController.java b/packages/google_maps_flutter/google_maps_flutter_android/android/src/main/java/io/flutter/plugins/googlemaps/GoogleMapController.java
index 84d9fa7..c3a5ae6 100644
--- a/packages/google_maps_flutter/google_maps_flutter_android/android/src/main/java/io/flutter/plugins/googlemaps/GoogleMapController.java
+++ b/packages/google_maps_flutter/google_maps_flutter_android/android/src/main/java/io/flutter/plugins/googlemaps/GoogleMapController.java
@@ -604,20 +604,6 @@
     googleMap.setOnMapLongClickListener(listener);
   }
 
-  // @Override
-  // The minimum supported version of Flutter doesn't have this method on the PlatformView interface, but the maximum
-  // does. This will override it when available even with the annotation commented out.
-  public void onInputConnectionLocked() {
-    // TODO(mklim): Remove this empty override once https://github.com/flutter/flutter/issues/40126 is fixed in stable.
-  }
-
-  // @Override
-  // The minimum supported version of Flutter doesn't have this method on the PlatformView interface, but the maximum
-  // does. This will override it when available even with the annotation commented out.
-  public void onInputConnectionUnlocked() {
-    // TODO(mklim): Remove this empty override once https://github.com/flutter/flutter/issues/40126 is fixed in stable.
-  }
-
   // DefaultLifecycleObserver
 
   @Override
diff --git a/packages/google_maps_flutter/google_maps_flutter_android/pubspec.yaml b/packages/google_maps_flutter/google_maps_flutter_android/pubspec.yaml
index 04c9f12..d04f3a3 100644
--- a/packages/google_maps_flutter/google_maps_flutter_android/pubspec.yaml
+++ b/packages/google_maps_flutter/google_maps_flutter_android/pubspec.yaml
@@ -2,7 +2,7 @@
 description: Android implementation of the google_maps_flutter plugin.
 repository: https://github.com/flutter/packages/tree/main/packages/google_maps_flutter/google_maps_flutter_android
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+maps%22
-version: 2.4.15
+version: 2.4.16
 
 environment:
   sdk: ">=2.18.0 <4.0.0"