KVM: TDX: Remove redundant __GFP_ZERO

Remove the redundant __GFP_ZERO flag from kcalloc() since kcalloc()
inherently zeroes memory.

Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Reviewed-by: Kai Huang <kai.huang@intel.com>
Link: https://lore.kernel.org/r/20250808074532.215098-1-rongqianfeng@vivo.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

Author: qianfengrong

arch/x86/kvm/vmx/tdx.c

@@ -2480,7 +2480,7 @@ static int __tdx_td_init(struct kvm *kvm, struct td_params *td_params,
 	/* TDVPS = TDVPR(4K page) + TDCX(multiple 4K pages), -1 for TDVPR. */
 	kvm_tdx->td.tdcx_nr_pages = tdx_sysinfo->td_ctrl.tdvps_base_size / PAGE_SIZE - 1;
 	tdcs_pages = kcalloc(kvm_tdx->td.tdcs_nr_pages, sizeof(*kvm_tdx->td.tdcs_pages),
-			     GFP_KERNEL | __GFP_ZERO);
+			     GFP_KERNEL);
 	if (!tdcs_pages)
 		goto free_tdr;