nix unused constant

1 files changed, 0 insertions, 1 deletions

diff --git a/opentrack/tracker.cpp b/opentrack/tracker.cpp
index 8e8b1e7f..344cfcbb 100644
--- a/opentrack/tracker.cpp
+++ b/opentrack/tracker.cpp
@@ -51,7 +51,6 @@ double Tracker::map(double pos, bool invertp, Mapping& axis)
 // http://stackoverflow.com/a/18436193
 static dmat<3, 1> rmat_to_euler(const dmat<3, 3>& R)
 {
-    static constexpr double pi = 3.141592653;
     // don't use atan2 here, confuses quadrants. see issue #63 -sh
     double pitch = atan( -R(0, 2) / sqrt(R(1,2)*R(1,2) + R(2,2)*R(2,2)) );
     double roll = atan(R(1, 2) / R(2, 2));