Remove code that would cause accessibility header role to be spoken twice (#27496)

Summary:
The header role is being said twice in android. Stopped that from happening.

## Changelog
[General] [Added] - removed code that would cause accessibility header role to be spoken twice
Pull Request resolved: #27496

Test Plan:
Test plan is testing in RNTester making sure the examples work

## Note:
generatedComponentApiDocs.js was modified by lint commands. I can submit a PR without it if preferred.

Differential Revision: D18973520

Pulled By: hramos

fbshipit-source-id: 9a7cc2d3fac1d0fc79dedb443d5ca365026b3b15

Author: KevinGVargas

ReactAndroid/src/main/java/com/facebook/react/uimanager/ReactAccessibilityDelegate.java

@@ -367,7 +367,6 @@ public static void setRole(
     } else if (role.equals(AccessibilityRole.SUMMARY)) {
       nodeInfo.setRoleDescription(context.getString(R.string.summary_description));
     } else if (role.equals(AccessibilityRole.HEADER)) {
-      nodeInfo.setRoleDescription(context.getString(R.string.header_description));
       final AccessibilityNodeInfoCompat.CollectionItemInfoCompat itemInfo =
           AccessibilityNodeInfoCompat.CollectionItemInfoCompat.obtain(0, 1, 0, 1, true);
       nodeInfo.setCollectionItemInfo(itemInfo);