Revert "drm/amd: Check if ASPM is enabled from PCIe subsystem"

This reverts commit 7294863.

This commit was erroneously applied again after commit 0ab5d71
("drm/amd: Refactor `amdgpu_aspm` to be evaluated per device")
removed it, leading to very hard to debug crashes, when used with a system with two
AMD GPUs of which only one supports ASPM.

Link: https://lore.kernel.org/linux-acpi/[email protected]/
Link: acpica/acpica#1060
Fixes: 0ab5d71 ("drm/amd: Refactor `amdgpu_aspm` to be evaluated per device")
Signed-off-by: Bert Karwatzki <[email protected]>
Reviewed-by: Christian König <[email protected]>
Reviewed-by: Mario Limonciello (AMD) <[email protected]>
Signed-off-by: Mario Limonciello <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
(cherry picked from commit 97a9689)
Cc: [email protected]

Author: spasswolf

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

@@ -2405,9 +2405,6 @@ static int amdgpu_pci_probe(struct pci_dev *pdev,
 			return -ENODEV;
 	}
 
-	if (amdgpu_aspm == -1 && !pcie_aspm_enabled(pdev))
-		amdgpu_aspm = 0;
-
 	if (amdgpu_virtual_display ||
 	    amdgpu_device_asic_has_dc_support(pdev, flags & AMD_ASIC_MASK))
 		supports_atomic = true;