Remove @hide javadoc annotation from ExoPlayer GitHub

This tag is only understood by Dackka, which is used to generate the media3 javadoc.

PiperOrigin-RevId: 489233200
(cherry picked from commit 0388631ee22dd9ce0e8903653f8c1f3bf84030ea)

javadoc_combined.gradle

@@ -39,7 +39,6 @@ class CombinedJavadocPlugin implements Plugin<Project> {
           options {
             links "https://developer.android.com/reference", guavaReferenceUrl
             encoding = "UTF-8"
-            tags = ["hide"]
           }
           options.addBooleanOption "-no-module-directories", true
           exclude "**/BuildConfig.java"

libraries/decoder_opus/src/main/java/androidx/media3/decoder/opus/LibopusAudioRenderer.java

@@ -127,7 +127,7 @@ public class LibopusAudioRenderer extends DecoderAudioRenderer<OpusDecoder> {
   }
 
   /**
-   * {@inheritDoc} g
+   * {@inheritDoc}
    *
    * @hide
    */