Remove the experimental notes about partitioning

Summary:
This patch will remove the existing comments that declare partitioning indexes and filters as experimental.
Closes https://github.com/facebook/rocksdb/pull/3115

Differential Revision: D6222227

Pulled By: maysamyabandeh

fbshipit-source-id: 6179ec43b22c518494051b674d91c9e1b54d4ac0

include/rocksdb/table.h

@@ -87,9 +87,6 @@ struct BlockBasedTableOptions {
     // `Options.prefix_extractor` is provided.
     kHashSearch,
 
-    // TODO(myabandeh): this feature is in experimental phase and shall not be
-    // used in production; either remove the feature or remove this comment if
-    // it is ready to be used in production.
     // A two-level index implementation. Both levels are binary search indexes.
     kTwoLevelIndexSearch,
   };
@@ -158,10 +155,8 @@ struct BlockBasedTableOptions {
   // Note: currently this option requires kTwoLevelIndexSearch to be set as
   // well.
   // TODO(myabandeh): remove the note above once the limitation is lifted
-  // TODO(myabandeh): this feature is in experimental phase and shall not be
+  // Use partitioned full filters for each SST file. This option is
-  // used in production; either remove the feature or remove this comment if
+  // incompatibile with block-based filters.
-  // it is ready to be used in production.
-  // Use partitioned full filters for each SST file
   bool partition_filters = false;
 
   // Use delta encoding to compress keys in blocks.