Removed Berkeley DB and db switching logic

tests/unit_tests/blockchain_db.cpp

@@ -38,9 +38,6 @@
 #include "string_tools.h"
 #include "blockchain_db/blockchain_db.h"
 #include "blockchain_db/lmdb/db_lmdb.h"
-#ifdef BERKELEY_DB
-#include "blockchain_db/berkeleydb/db_bdb.h"
-#endif
 #include "cryptonote_basic/cryptonote_format_utils.h"
 
 using namespace cryptonote;
@@ -233,11 +230,7 @@ protected:
 
 using testing::Types;
 
-typedef Types<BlockchainLMDB
-#ifdef BERKELEY_DB
-  , BlockchainBDB
-#endif
-> implementations;
+typedef Types<BlockchainLMDB> implementations;
 
 TYPED_TEST_CASE(BlockchainDBTest, implementations);