drm/gma500: Remove DP_LINK_STATUS_SIZE redefinition

The DRM/DP helpers already contain a definition for this macro. Remove
the duplicate in the GMA500 driver to avoid having to keep both updated
synchronously.

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/gma500/cdv_intel_dp.c b/drivers/gpu/drm/gma500/cdv_intel_dp.c
index 0fafb8e..17cea40 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_dp.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_dp.c
@@ -247,7 +247,6 @@
 
 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
 
-#define DP_LINK_STATUS_SIZE	6
 #define DP_LINK_CHECK_TIMEOUT	(10 * 1000)
 
 #define DP_LINK_CONFIGURATION_SIZE	9