include/rocksdb/sst_file_writer.h should not depend on util/mutable_cf_options.h

Summary: I don't think util/mutable_cf_options.h is needed inside include/rocksdb/sst_file_writer.h and it is not allowed. Remove it.

Test Plan: Run all tests

Reviewers: IslamAbdelRahman

Reviewed By: IslamAbdelRahman

Subscribers: lightmark, leveldb, andrewkr, dhruba

Differential Revision: https://reviews.facebook.net/D58827

include/rocksdb/sst_file_writer.h

@@ -8,7 +8,6 @@
 #include "rocksdb/env.h"
 #include "rocksdb/immutable_options.h"
 #include "rocksdb/types.h"
-#include "util/mutable_cf_options.h"
 
 namespace rocksdb {