Fixes the following W=1 kernel build warning(s):
 drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_link_encoder.c: In function ‘dce110_link_encoder_update_mst_stream_allocation_table’:
 drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_link_encoder.c:1506:11: warning: variable ‘value0’ set but not used [-Wunused-but-set-variable]
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Mauro Rossi <issor.oruam@gmail.com>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
        const struct link_mst_stream_allocation_table *table)
 {
        struct dce110_link_encoder *enc110 = TO_DCE110_LINK_ENC(enc);
-       uint32_t value0 = 0;
        uint32_t value1 = 0;
        uint32_t value2 = 0;
        uint32_t slots = 0;
        do {
                udelay(10);
 
-               value0 = REG_READ(DP_MSE_SAT_UPDATE);
+               REG_READ(DP_MSE_SAT_UPDATE);
 
                REG_GET(DP_MSE_SAT_UPDATE,
                                DP_MSE_SAT_UPDATE, &value1);