Revert "PCI: qcom: Disable write access to read only registers for IP v2.3.3"

This reverts commit 48e11e7c81 which is
commit a33d700e8eea76c62120cb3dbf5e01328f18319a upstream.

It was applied to the incorrect function as the original function the
commit changed is not in this kernel branch.

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Link: https://lore.kernel.org/r/f23affddab4d8b3cc07508f2d8735d88d823821d.camel@decadent.org.uk
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/pci/controller/dwc/pcie-qcom.c

@@ -771,8 +771,6 @@ static int qcom_pcie_get_resources_2_4_0(struct qcom_pcie *pcie)
 			return PTR_ERR(res->phy_ahb_reset);
 	}
 
-	dw_pcie_dbi_ro_wr_dis(pci);
-
 	return 0;
 }