Revert "Fix another bug caused by recent hash index fix (#6305)"

This reverts commit d87cffaea4.

db/db_test2.cc

@@ -4362,48 +4362,6 @@ TEST_F(DBTest2, BlockBasedTablePrefixIndexSeekForPrev) {
   }
 }
 
-TEST_F(DBTest2, BlockBasedTablePrefixGetIndexNotFound) {
-  // create a DB with block prefix index
-  BlockBasedTableOptions table_options;
-  Options options = CurrentOptions();
-  table_options.block_size = 300;
-  table_options.index_type = BlockBasedTableOptions::kHashSearch;
-  table_options.index_shortening =
-      BlockBasedTableOptions::IndexShorteningMode::kNoShortening;
-  options.table_factory.reset(NewBlockBasedTableFactory(table_options));
-  options.prefix_extractor.reset(NewFixedPrefixTransform(1));
-  options.level0_file_num_compaction_trigger = 8;
-
-  Reopen(options);
-
-  ASSERT_OK(Put("b1", "ok"));
-  Flush();
-
-  // Flushing several files so that the chance that hash bucket
-  // is empty fo "b" in at least one of the files is high.
-  ASSERT_OK(Put("a1", ""));
-  ASSERT_OK(Put("c1", ""));
-  Flush();
-
-  ASSERT_OK(Put("a2", ""));
-  ASSERT_OK(Put("c2", ""));
-  Flush();
-
-  ASSERT_OK(Put("a3", ""));
-  ASSERT_OK(Put("c3", ""));
-  Flush();
-
-  ASSERT_OK(Put("a4", ""));
-  ASSERT_OK(Put("c4", ""));
-  Flush();
-
-  ASSERT_OK(Put("a5", ""));
-  ASSERT_OK(Put("c5", ""));
-  Flush();
-
-  ASSERT_EQ("ok", Get("b1"));
-}
-
 }  // namespace rocksdb
 
 #ifdef ROCKSDB_UNITTESTS_WITH_CUSTOM_OBJECTS_FROM_STATIC_LIBS

table/block_based/block_based_table_reader.cc

@@ -3467,7 +3467,7 @@ Status BlockBasedTable::Get(const ReadOptions& read_options, const Slice& key,
       PERF_COUNTER_BY_LEVEL_ADD(bloom_filter_full_true_positive, 1,
                                 rep_->level);
     }
-    if (s.ok() && !iiter->status().IsNotFound()) {
+    if (s.ok()) {
       s = iiter->status();
     }
   }