Removed extra explicit

Author: GrigoriyPA

ydb/services/metadata/manager/fetch_database.h

@@ -13,7 +13,7 @@ class TEvFetchDatabaseResponse : public TEventLocal<TEvFetchDatabaseResponse, Ev
     YDB_READONLY_DEF(TString, ErrorString);
 
 public:
-    explicit TEvFetchDatabaseResponse(bool serverless, const TString& errorString)
+    TEvFetchDatabaseResponse(bool serverless, const TString& errorString)
         : Serverless(serverless)
         , ErrorString(errorString)
     {}