Remove custom content description handling

Summary:
we are trying to fix the contentdescription reannouncement bug.
This custom handling was added back in 2016. Currently all of the functionality would be performed in super.setContentDescription.
https://android.googlesource.com/platform/frameworks/base/+/master/core/java/android/view/View.java#11863

while looking at the method it does exactly the same as we were doing, checking the content of content description, setting it if its different and invalidating the view so it should be safe to delete

Reviewed By: kingsleyadio

Differential Revision: D63534651

fbshipit-source-id: 4c9cc95401c559f02916cc84ee733bc2fdd93c59

litho-core/src/main/java/com/facebook/litho/ComponentHost.kt

@@ -418,34 +418,9 @@ open class ComponentHost(
     return contentDescription
   }
 
-  /**
-   * Host views implement their own content description handling instead of just delegating to the
-   * underlying view framework for performance reasons as the framework sets/resets content
-   * description very frequently on host views and the underlying accessibility notifications might
-   * cause performance issues. This is safe to do because the framework owns the accessibility state
-   * and knows how to update it efficiently.
-   */
   override fun setContentDescription(contentDescription: CharSequence?) {
-    if (this.contentDescription == null) {
-      if (contentDescription == null) {
-        return
-      }
-    } else if (this.contentDescription == contentDescription) {
-      return
-    }
+    super.setContentDescription(contentDescription)
     this.contentDescription = contentDescription
-
-    if (!contentDescription.isNullOrEmpty() &&
-        ViewCompat.getImportantForAccessibility(this) ==
-            ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
-      ViewCompat.setImportantForAccessibility(this, ViewCompat.IMPORTANT_FOR_ACCESSIBILITY_YES)
-    }
-    if (!contentDescription.isNullOrEmpty()) {
-      // To fix the issue that the TYPE_WINDOW_CONTENT_CHANGED event doesn't get triggered.
-      // More details at here: https://fburl.com/aoa2apq5
-      super.setContentDescription(contentDescription)
-    }
-    maybeInvalidateAccessibilityState()
   }
 
   override fun setTag(key: Int, tag: Any?) {