Drop unused function calc_penumbral_gradient

Unused since 4913fd7a4806e54ebe4eb7f5f3f1d2fa3b8fdbdb

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

diff --git a/src/filter.c b/src/filter.c
index afb87ef2d1473784cbb4647410a82ed6f039c581..89390d12e5386b83997cd0b5b2c288220302d84c 100644 (file)
--- a/src/filter.c
+++ b/src/filter.c
@@ -308,14 +308,6 @@ create_pointer_accelerator_filter(accel_profile_func_t profile)
        return &filter->base;
 }
 
-static inline double
-calc_penumbral_gradient(double x)
-{
-       x *= 2.0;
-       x -= 1.0;
-       return 0.5 + (x * sqrt(1.0 - x * x) + asin(x)) / M_PI;
-}
-
 double
 pointer_accel_profile_linear(struct motion_filter *filter,
                             void *data,