SetRecordData is not really needed anymore so get rid of it

Always use SetRecordDataFull now.

include/backends/db_backend.hpp

@@ -30,7 +30,6 @@
 namespace mchlib {
 	struct TigerHash;
 	struct FileRecordData;
-	struct SetRecordData;
 	struct SetRecordDataFull;
 } //namespace mchlib
 

include/dindexer-machinery/recorddata.hpp

@@ -130,17 +130,13 @@ namespace mchlib {
 		bool hash_valid;
 	};
 
-	struct SetRecordData {
+	struct SetRecordDataFull {
-		boost::string_ref name;
-		char type;
-		char content_type;
-	};
-
-	struct SetRecordDataFull : public SetRecordData {
 		std::string name;
 		std::string disk_label;
 		std::string fs_uuid;
 		uint32_t disk_number;
+		char type;
+		char content_type;
 	};
 
 #if !defined(NDEBUG)

src/backends/postgresql/scan.hpp

@@ -24,7 +24,6 @@
 
 namespace mchlib {
 	struct FileRecordData;
-	struct SetRecordData;
 	struct SetRecordDataFull;
 	struct TigerHash;
 } //namespace mchlib

src/machinery/scantask/setbasic.cpp

@@ -29,13 +29,11 @@ namespace mchlib {
 		}
 
 		void SetBasic::on_data_destroy (SetRecordDataFull& parData) {
-			static_cast<SetRecordData&>(parData).name.clear();
 			parData.name.clear();
 		}
 
 		void SetBasic::on_data_create (SetRecordDataFull& parData) {
 			parData.name = m_set_name;
-			static_cast<SetRecordData&>(parData).name = parData.name;
 		}
 	} //namespace scantask
 } //namespace mchlib