drm/amdgpu/sdma5: drop unused cyan skillfish firmware

Leftover from bring up.  Not used anymore.
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c

@@ -51,9 +51,6 @@ MODULE_FIRMWARE("amdgpu/navi14_sdma1.bin");
 MODULE_FIRMWARE("amdgpu/navi12_sdma.bin");
 MODULE_FIRMWARE("amdgpu/navi12_sdma1.bin");
 
-MODULE_FIRMWARE("amdgpu/cyan_skillfish_sdma.bin");
-MODULE_FIRMWARE("amdgpu/cyan_skillfish_sdma1.bin");
-
 MODULE_FIRMWARE("amdgpu/cyan_skillfish2_sdma.bin");
 MODULE_FIRMWARE("amdgpu/cyan_skillfish2_sdma1.bin");
 
@@ -264,10 +261,7 @@ static int sdma_v5_0_init_microcode(struct amdgpu_device *adev)
 		chip_name = "navi12";
 		break;
 	case IP_VERSION(5, 0, 1):
-		if (adev->apu_flags & AMD_APU_IS_CYAN_SKILLFISH2)
-			chip_name = "cyan_skillfish2";
-		else
-			chip_name = "cyan_skillfish";
+		chip_name = "cyan_skillfish2";
 		break;
 	default:
 		BUG();