many: remove compat/pi-constant.hpp

With -D_USE_MATH_DEFINES MSVC defines the standard M_PI and
friends.

Since this preprocessor definition is now always passed as part
of the build system for MSVC. We can use M_PI as if on a
mission.

2 files changed, 7 insertions, 8 deletions

diff --git a/tracker-test/test.cpp b/tracker-test/test.cpp
index 3e0db547..9ffdd366 100644
--- a/tracker-test/test.cpp
+++ b/tracker-test/test.cpp
@@ -56,17 +56,16 @@ void FTNoIR_Tracker::data(double *data)
 #endif
         for (int i = 0; i < 6; i++)
         {
-            double x = fmod(last_x[i] + incr[i] * d2r * dt,
-                            2 * pi);
+            double x = fmod(last_x[i] + incr[i] * d2r * dt, 2 * M_PI);
             last_x[i] = x;
 
             if (i >= 3)
             {
 #ifdef DISCONTINUITY
                 if (x > pi + pi/2)
-                    x -= pi;
+                    x -= M_PI;
                 else if (x > pi/2 && x < pi)
-                    x += pi;
+                    x += M_PI;
 #endif
 
                 data[i] = sin(x) * 180;
diff --git a/tracker-test/test.h b/tracker-test/test.h
index 786d7705..acaee67d 100644
--- a/tracker-test/test.h
+++ b/tracker-test/test.h
@@ -2,7 +2,8 @@
 #include "ui_test.h"
 #include "api/plugin-api.hpp"
 #include "compat/timer.hpp"
-#include "compat/pi-constant.hpp"
+
+#include <cmath>
 
 class FTNoIR_Tracker : public ITracker
 {
@@ -13,9 +14,8 @@ public:
     void data(double *data) override;
 
 private:
-    static constexpr double pi = OPENTRACK_PI;
-    static constexpr double r2d = 180 / pi;
-    static constexpr double d2r = pi / 180;
+    static constexpr double r2d = 180 / M_PI;
+    static constexpr double d2r = M_PI / 180;
 
     static const double incr[6];
     double last_x[6];