Remove a useless “givin up” debug line

src/database/postgresql_statement.hpp

@@ -117,12 +117,8 @@ private:
             PQreset(this->conn);
             return this->execute(true);
           }
-        else
-          {
-            log_error("Givin up.");
         return false;
       }
-      }
     return true;
   }