[PATCH -next] drm/amdgpu: remove set but not used variable 'adev'

[YueHaibing]

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

drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c: In function 'amdgpu_init_mem_type':
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c:81:24: warning:
 variable 'adev' set but not used [-Wunused-but-set-variable]
  struct amdgpu_device *adev;
                        ^

Signed-off-by: YueHaibing <yuehaibing at huawei.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index bb95627ad2cc..8199702d3354 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -78,10 +78,6 @@
 static int amdgpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
 				struct ttm_mem_type_manager *man)
 {
-	struct amdgpu_device *adev;
-
-	adev = amdgpu_ttm_adev(bdev);
-
 	switch (type) {
 	case TTM_PL_SYSTEM:
 		/* System memory */