Remove use of deprecated behavior involving copy members

*  If any of the destructor, copy assignment or copy constructor
   are user-declared, both copy members should be user-declared,
   otherwise the compiler-generation of them is deprecated.

src/ripple/core/SociDB.h

@@ -28,6 +28,11 @@
     This module requires the @ref beast_sqlite external module.
 */
 
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated"
+#endif
+
 #include <ripple/basics/Log.h>
 #include <ripple/core/JobQueue.h>
 #define SOCI_USE_BOOST
@@ -138,4 +143,8 @@ std::unique_ptr <Checkpointer> makeCheckpointer (soci::session&, JobQueue&, Logs
 #include "version.h"
 #endif
 
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+
 #endif

src/ripple/core/impl/DummySociDynamicBackend.cpp

@@ -24,6 +24,11 @@
     header file and some macros to be defined.)
 */
 
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated"
+#endif
+
 #include <BeastConfig.h>
 #include <ripple/basics/contract.h>
 #include <ripple/core/SociDB.h>
@@ -57,3 +62,6 @@ void unload_all (){};
 }  // namespace dynamic_backends
 }  // namespace soci
 
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif

src/ripple/core/impl/SociDB.cpp

@@ -17,6 +17,11 @@
 */
 //==============================================================================
 
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wdeprecated"
+#endif
+
 #include <BeastConfig.h>
 
 #include <ripple/basics/contract.h>
@@ -271,3 +276,7 @@ std::unique_ptr <Checkpointer> makeCheckpointer (
 }
 
 }
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif