Remove unused function
diff --git a/LottieSample/src/androidTest/java/com/airbnb/lottie/samples/SuspendingSemaphore.kt b/LottieSample/src/androidTest/java/com/airbnb/lottie/samples/SuspendingSemaphore.kt
index daac693..6826ea9 100644
--- a/LottieSample/src/androidTest/java/com/airbnb/lottie/samples/SuspendingSemaphore.kt
+++ b/LottieSample/src/androidTest/java/com/airbnb/lottie/samples/SuspendingSemaphore.kt
@@ -29,7 +29,4 @@
             bufferedChannel.receive()
         }
     }
-
-    @ExperimentalCoroutinesApi
-    fun isFull() = !bufferedChannel.isEmpty
 }
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