removed virtual verify member function in entry class

src/classes/aircraft.cpp

@@ -21,4 +21,3 @@
 #define DEB(expr) \
     qDebug() << "aircraft ::" << __func__ << "\t" << expr
 
-

src/classes/aircraft.h

@@ -27,8 +27,6 @@
 class aircraft : public entry
 {
 using entry::entry;
-public:
-    bool verify() override;
 };
 
 #endif // AIRCRAFT_H

src/classes/flight.cpp

@@ -16,3 +16,4 @@
  *along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 #include "flight.h"
+

src/classes/flight.h

@@ -27,8 +27,6 @@
 class flight : public entry
 {
     using entry::entry;
-
-    bool verify() override;
 };
 
 #endif // FLIGHT_H

src/classes/pilot.cpp

@@ -17,3 +17,4 @@
  */
 #include "pilot.h"
 
+

src/classes/pilot.h

@@ -23,8 +23,6 @@
 class pilot : public entry
 {
     using entry::entry;
-public:
-    bool verify() override;
 };
 
 #endif // PILOT_H

src/database/entry.h

@@ -43,7 +43,6 @@ public:
     bool remove();
     bool exists();
 
-    bool virtual verify();
 
     // Debug functionality
     void print();