Remove deprecated ReadOptions::managed, `ColumnFamilyOptions::snap_refresh_nanos (#14350)

Summary:
**Context/Summary:**
Remove deprecated, unused APIs and options:
- ReadOptions::managed: This option was not used anymore. The functionality it controlled has been removed long ago.
- ColumnFamilyOptions::snap_refresh_nanos: Deprecated and unused option.

Corresponding C API (rocksdb_readoptions_set_managed) and Java API (ReadOptions.managed/setManaged) are also removed. All related checks an db_impl and db_impl_secondary iterators are cleaned up.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/14350

Test Plan: make check

Reviewed By: pdillinger

Differential Revision: D93812438

Pulled By: hx235

fbshipit-source-id: e4a9d21c65f83294b6d0878286ba14024f049bac

java/rocksjni/options.cc

@@ -8031,26 +8031,6 @@ jboolean Java_org_rocksdb_ReadOptions_tailing(JNIEnv*, jclass, jlong jhandle) {
   return reinterpret_cast<ROCKSDB_NAMESPACE::ReadOptions*>(jhandle)->tailing;
 }
 
-/*
- * Class:     org_rocksdb_ReadOptions
- * Method:    managed
- * Signature: (J)Z
- */
-jboolean Java_org_rocksdb_ReadOptions_managed(JNIEnv*, jclass, jlong jhandle) {
-  return reinterpret_cast<ROCKSDB_NAMESPACE::ReadOptions*>(jhandle)->managed;
-}
-
-/*
- * Class:     org_rocksdb_ReadOptions
- * Method:    setManaged
- * Signature: (JZ)V
- */
-void Java_org_rocksdb_ReadOptions_setManaged(JNIEnv*, jclass, jlong jhandle,
-                                             jboolean jmanaged) {
-  reinterpret_cast<ROCKSDB_NAMESPACE::ReadOptions*>(jhandle)->managed =
-      static_cast<bool>(jmanaged);
-}
-
 /*
  * Class:     org_rocksdb_ReadOptions
  * Method:    totalOrderSeek

java/src/main/java/org/rocksdb/ReadOptions.java

@@ -186,37 +186,6 @@ public class ReadOptions extends RocksObject {
     return this;
   }
 
-  /**
-   * Returns whether managed iterators will be used.
-   *
-   * @return the setting of whether managed iterators will be used,
-   *     by default false
-   *
-   * @deprecated This options is not used anymore.
-   */
-  @Deprecated
-  public boolean managed() {
-    assert(isOwningHandle());
-    return managed(nativeHandle_);
-  }
-
-  /**
-   * Specify to create a managed iterator -- a special iterator that
-   * uses less resources by having the ability to free its underlying
-   * resources on request.
-   *
-   * @param managed if true, then managed iterators will be enabled.
-   * @return the reference to the current ReadOptions.
-   *
-   * @deprecated This options is not used anymore.
-   */
-  @Deprecated
-  public ReadOptions setManaged(final boolean managed) {
-    assert(isOwningHandle());
-    setManaged(nativeHandle_, managed);
-    return this;
-  }
-
   /**
    * Returns whether a total seek order will be used
    *
@@ -819,8 +788,6 @@ public class ReadOptions extends RocksObject {
   private static native void setReadTier(long handle, byte readTierValue);
   private static native boolean tailing(long handle);
   private static native void setTailing(long handle, boolean tailing);
-  private static native boolean managed(long handle);
-  private static native void setManaged(long handle, boolean managed);
   private static native boolean totalOrderSeek(long handle);
   private static native void setTotalOrderSeek(long handle, boolean totalOrderSeek);
   private static native boolean prefixSameAsStart(long handle);

java/src/test/java/org/rocksdb/ReadOptionsTest.java

@@ -98,15 +98,6 @@ public class ReadOptionsTest {
     }
   }
 
-  @SuppressWarnings("deprecated")
-  @Test
-  public void managed() {
-    try (final ReadOptions opt = new ReadOptions()) {
-      opt.setManaged(true);
-      assertThat(opt.managed()).isTrue();
-    }
-  }
-
   @Test
   public void totalOrderSeek() {
     try (final ReadOptions opt = new ReadOptions()) {