Remove `@Beta` from `CountingOutputStream`.

RELNOTES=`io`: Removed `@Beta` from `CountingOutputStream`.
PiperOrigin-RevId: 354334755
diff --git a/android/guava/src/com/google/common/io/CountingOutputStream.java b/android/guava/src/com/google/common/io/CountingOutputStream.java
index 8a3d170..5d67a09 100644
--- a/android/guava/src/com/google/common/io/CountingOutputStream.java
+++ b/android/guava/src/com/google/common/io/CountingOutputStream.java
@@ -16,7 +16,6 @@
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
-import com.google.common.annotations.Beta;
 import com.google.common.annotations.GwtIncompatible;
 import java.io.FilterOutputStream;
 import java.io.IOException;
@@ -28,7 +27,6 @@
  * @author Chris Nokleberg
  * @since 1.0
  */
-@Beta
 @GwtIncompatible
 public final class CountingOutputStream extends FilterOutputStream {
 
diff --git a/guava/src/com/google/common/io/CountingOutputStream.java b/guava/src/com/google/common/io/CountingOutputStream.java
index 8a3d170..5d67a09 100644
--- a/guava/src/com/google/common/io/CountingOutputStream.java
+++ b/guava/src/com/google/common/io/CountingOutputStream.java
@@ -16,7 +16,6 @@
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
-import com.google.common.annotations.Beta;
 import com.google.common.annotations.GwtIncompatible;
 import java.io.FilterOutputStream;
 import java.io.IOException;
@@ -28,7 +27,6 @@
  * @author Chris Nokleberg
  * @since 1.0
  */
-@Beta
 @GwtIncompatible
 public final class CountingOutputStream extends FilterOutputStream {