Removed redundant slice_transform.h and memtablerep.h

Summary:
Removed redundant slice_transform.h and memtablerep.h

Test Plan:
make check

Reviewers:

CC:

Task ID: #

Blame Rev:

include/rocksdb/options.h

@@ -15,11 +15,9 @@
 #include <vector>
 #include <stdint.h>
 
-#include "rocksdb/memtablerep.h"
 #include "rocksdb/memtablerep.h"
 #include "rocksdb/slice.h"
 #include "rocksdb/slice_transform.h"
-#include "rocksdb/slice_transform.h"
 #include "rocksdb/statistics.h"
 #include "rocksdb/table_properties.h"
 #include "rocksdb/universal_compaction.h"