Trim TreeBranchEvents (#26754)

This removes events on tree _branches_ that are specific to _views_.
This is part of ongoing effort to expose branches as separate entities
from views. This is a breaking alpha API change - I will run the
integration pipeline to ensure compatibility. Use `hasRootSchema` to get
the view from your branch if you want to use the events that were
removed.

- [ ] Integration Pipeline Succeeded (FF Build 385127)

Author: noencke

packages/dds/tree/api-report/tree.alpha.api.md

@@ -1681,7 +1681,7 @@ export interface TreeBranchAlpha extends TreeBranch, TreeContextAlpha {
 }
 
 // @alpha @sealed
-export interface TreeBranchEvents extends Omit<TreeViewEvents, "commitApplied"> {
+export interface TreeBranchEvents {
     changed(data: ChangeMetadata, getRevertible?: RevertibleAlphaFactory): void;
     commitApplied(data: ChangeMetadata, getRevertible?: RevertibleAlphaFactory): void;
 }

packages/dds/tree/src/simple-tree/api/tree.ts

@@ -559,7 +559,7 @@ export interface SchemaCompatibilityStatus {
  * Events for {@link TreeBranch}.
  * @sealed @alpha
  */
-export interface TreeBranchEvents extends Omit<TreeViewEvents, "commitApplied"> {
+export interface TreeBranchEvents {
 	/**
 	 * Fired when a change is made to the branch. Includes data about the change that is made which listeners
 	 * can use to filter on changes they care about (e.g. local vs. remote changes).

packages/framework/fluid-framework/api-report/fluid-framework.alpha.api.md

@@ -2073,7 +2073,7 @@ export interface TreeBranchAlpha extends TreeBranch, TreeContextAlpha {
 }
 
 // @alpha @sealed
-export interface TreeBranchEvents extends Omit<TreeViewEvents, "commitApplied"> {
+export interface TreeBranchEvents {
     changed(data: ChangeMetadata, getRevertible?: RevertibleAlphaFactory): void;
     commitApplied(data: ChangeMetadata, getRevertible?: RevertibleAlphaFactory): void;
 }