[PATCH -next] drm/amd/display: remove set but not used variable 'core_freesync'

[YueHaibing]

Fixes gcc '-Wunused-but-set-variable' warning:

rivers/gpu/drm/amd/amdgpu/../display/modules/freesync/freesync.c:
 In function mod_freesync_get_settings:
drivers/gpu/drm/amd/amdgpu/../display/modules/freesync/freesync.c:984:24:
 warning: variable core_freesync set but not used [-Wunused-but-set-variable]

It is not used since commit 98e6436d3af5 ("drm/amd/display: Refactor FreeSync 
module")

Reported-by: Hulk Robot <hul...@huawei.com>
Signed-off-by: YueHaibing <yuehaib...@huawei.com>
---
 drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c 
b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
index 9ce56a8..237dda7 100644
--- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
+++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
@@ -981,13 +981,9 @@ void mod_freesync_get_settings(struct mod_freesync 
*mod_freesync,
                unsigned int *inserted_frames,
                unsigned int *inserted_duration_in_us)
 {
-       struct core_freesync *core_freesync = NULL;
-
        if (mod_freesync == NULL)
                return;
 
-       core_freesync = MOD_FREESYNC_TO_CORE(mod_freesync);
-
        if (vrr->supported) {
                *v_total_min = vrr->adjust.v_total_min;
                *v_total_max = vrr->adjust.v_total_max;
-- 
2.7.4