drm/nouveau: remove duplicate inclusion of nouveau_ttm.h

nouveau_ttm.h was included twice.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/nouveau_drm.c

@@ -49,8 +49,6 @@
 #include "nouveau_fbcon.h"
 #include "nouveau_fence.h"
 
-#include "nouveau_ttm.h"
-
 MODULE_PARM_DESC(config, "option string to pass to driver core");
 static char *nouveau_config;
 module_param_named(config, nouveau_config, charp, 0400);