Fixes the following Clang warnings.
lp_setup_tri.c:55:1: warning: unused function 'subpixel_snap' [-Wunused-function]
subpixel_snap(float a)
^
lp_setup_tri.c:61:1: warning: unused function 'fixed_to_float' [-Wunused-function]
fixed_to_float(int a)
^
v2: - do not remove subpixel_snap() (use !PIPE_ARCH_SSE instead)
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>