EKF: remove virtual getters from estimator_interface

EKF/covariance.cpp

@@ -1034,7 +1034,6 @@ bool Ekf::checkAndFixCovarianceUpdate(const SquareMatrix24f& KHP) {
 	return healthy;
 }
 
-
 void Ekf::resetMagRelatedCovariances()
 {
 	resetQuatCov();
@@ -1119,6 +1118,5 @@ void Ekf::resetWindCovariance()
 	} else {
 		// without airspeed, start with a small initial uncertainty to improve the initial estimate
 		P.uncorrelateCovarianceSetVariance<2>(22, _params.initial_wind_uncertainty);
-
 	}
 }