diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 7a7decfbc0..b65ea50c08 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -2,10 +2,6 @@
 
 ### dev-v2 (not yet released) ###
 
-* Add `ExoCastPlayer` to cast to custom receiver apps using ExoPlayer's custom
-  communication protocol
-  ([#5486](https://github.com/google/ExoPlayer/issues/5486)). Also update the
-  Cast demo app to work with `ExoCastPlayer`.
 * HLS:
   * Form an adaptive track group out of audio renditions with matching name.
 * DASH:
diff --git a/demos/cast/build.gradle b/demos/cast/build.gradle
index 49a5e80985..48a9b5da6f 100644
--- a/demos/cast/build.gradle
+++ b/demos/cast/build.gradle
@@ -51,11 +51,6 @@ android {
     flavorDimensions "receiver"
 
     productFlavors {
-        exoCast {
-            dimension "receiver"
-            manifestPlaceholders =
-                    [castOptionsProvider: "com.google.android.exoplayer2.ext.cast.ExoCastOptionsProvider"]
-        }
         defaultCast {
             dimension "receiver"
             manifestPlaceholders =