PCI: endpoint: pci-epf-vntb: Remove superfluous checks for pci_epf_alloc_space() API

Now that the checks are performed by the pci_epf_alloc_space() API, let's
remove the superfluous checks in this driver.
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20240207213922.1796533-5-cassel@kernel.org
[mani: reworded the commit message]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

drivers/pci/endpoint/functions/pci-epf-vntb.c

@@ -527,7 +527,6 @@ static int epf_ntb_configure_interrupt(struct epf_ntb *ntb)
 static int epf_ntb_db_bar_init(struct epf_ntb *ntb)
 {
 	const struct pci_epc_features *epc_features;
-	u32 align;
 	struct device *dev = &ntb->epf->dev;
 	int ret;
 	struct pci_epf_bar *epf_bar;
@@ -538,16 +537,6 @@ static int epf_ntb_db_bar_init(struct epf_ntb *ntb)
 	epc_features = pci_epc_get_features(ntb->epf->epc,
 					    ntb->epf->func_no,
 					    ntb->epf->vfunc_no);
-	align = epc_features->align;
-
-	if (size < 128)
-		size = 128;
-
-	if (align)
-		size = ALIGN(size, align);
-	else
-		size = roundup_pow_of_two(size);
-
 	barno = ntb->epf_ntb_bar[BAR_DB];
 
 	mw_addr = pci_epf_alloc_space(ntb->epf, size, barno, epc_features, 0);