Remove SimpleCache hacks that are no longer used

PiperOrigin-RevId: 281049383

library/core/src/main/java/com/google/android/exoplayer2/upstream/cache/SimpleCache.java

@@ -61,9 +61,6 @@ public final class SimpleCache implements Cache {
 
 
   private static final HashSet<File> lockedCacheDirs = new HashSet<>();
   private static final HashSet<File> lockedCacheDirs = new HashSet<>();
 
 
-  private static boolean cacheFolderLockingDisabled;
-  private static boolean cacheInitializationExceptionsDisabled;
-
   private final File cacheDir;
   private final File cacheDir;
   private final CacheEvictor evictor;
   private final CacheEvictor evictor;
   private final CachedContentIndex contentIndex;
   private final CachedContentIndex contentIndex;
@@ -86,33 +83,6 @@ public final class SimpleCache implements Cache {
   }
   }
 
 
   /**
   /**
-   * Disables locking the cache folders which {@link SimpleCache} instances are using and releases
-   * any previous lock.
-   *
-   * <p>The locking prevents multiple {@link SimpleCache} instances from being created for the same
-   * folder. Disabling it may cause the cache data to be corrupted. Use at your own risk.
-   *
-   * @deprecated Don't create multiple {@link SimpleCache} instances for the same cache folder. If
-   *     you need to create another instance, make sure you call {@link #release()} on the previous
-   *     instance.
-   */
-  @Deprecated
-  public static synchronized void disableCacheFolderLocking() {
-    cacheFolderLockingDisabled = true;
-    lockedCacheDirs.clear();
-  }
-
-  /**
-   * Disables throwing of cache initialization exceptions.
-   *
-   * @deprecated Don't use this. Provided for problematic upgrade cases only.
-   */
-  @Deprecated
-  public static void disableCacheInitializationExceptions() {
-    cacheInitializationExceptionsDisabled = true;
-  }
-
-  /**
    * Deletes all content belonging to a cache instance.
    * Deletes all content belonging to a cache instance.
    *
    *
    * @param cacheDir The cache directory.
    * @param cacheDir The cache directory.
@@ -304,7 +274,7 @@ public final class SimpleCache implements Cache {
    * @throws CacheException If an error occurred during initialization.
    * @throws CacheException If an error occurred during initialization.
    */
    */
   public synchronized void checkInitialization() throws CacheException {
   public synchronized void checkInitialization() throws CacheException {
-    if (!cacheInitializationExceptionsDisabled && initializationException != null) {
+    if (initializationException != null) {
       throw initializationException;
       throw initializationException;
     }
     }
   }
   }
@@ -828,15 +798,10 @@ public final class SimpleCache implements Cache {
   }
   }
 
 
   private static synchronized boolean lockFolder(File cacheDir) {
   private static synchronized boolean lockFolder(File cacheDir) {
-    if (cacheFolderLockingDisabled) {
-      return true;
-    }
     return lockedCacheDirs.add(cacheDir.getAbsoluteFile());
     return lockedCacheDirs.add(cacheDir.getAbsoluteFile());
   }
   }
 
 
   private static synchronized void unlockFolder(File cacheDir) {
   private static synchronized void unlockFolder(File cacheDir) {
-    if (!cacheFolderLockingDisabled) {
     lockedCacheDirs.remove(cacheDir.getAbsoluteFile());
     lockedCacheDirs.remove(cacheDir.getAbsoluteFile());
   }
   }
-  }
 }
 }