remove the + sign from the lines

src/mlpack/core/dists/gaussian_distribution.hpp

@@ -168,12 +168,11 @@ class GaussianDistribution
 
   void Covariance(arma::mat&& covariance);
 
-+   //! Return the invCov.
-+  const arma::mat& InvCov() const { return invCov; }
-+
-+   //! Return the logDetCov.
-+  double LogDetCov() const { return logDetCov; }
-+
+   //! Return the invCov.
+  const arma::mat& InvCov() const { return invCov; }
+
+   //! Return the logDetCov.
+  double LogDetCov() const { return logDetCov; }
 
   /**
    * Serialize the distribution.