diff --git a/RecoVertex/GhostTrackFitter/src/AnnealingGhostTrackFitter.cc b/RecoVertex/GhostTrackFitter/src/AnnealingGhostTrackFitter.cc
index 6794861f7a078..98d18fa884032 100644
--- a/RecoVertex/GhostTrackFitter/src/AnnealingGhostTrackFitter.cc
+++ b/RecoVertex/GhostTrackFitter/src/AnnealingGhostTrackFitter.cc
@@ -9,10 +9,6 @@
 
 using namespace reco;
 
-namespace {
-	static inline double sqr(double arg) { return arg * arg; }
-}
-
 AnnealingGhostTrackFitter::AnnealingGhostTrackFitter()
 {
 	annealing.reset(new GeometricAnnealing(3.0, 64.0, 0.25));