iommu/arm-smmu-v3: Remove unnecessary wrapper function

Simplify the code by removing an unnecessary wrapper function.

This was left behind by commit 2f657add07a8
("iommu/arm-smmu-v3: Specialise CMD_SYNC handling")

Signed-off-by: Andrew Murray <andrew.murray@arm.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

drivers/iommu/arm-smmu-v3.c

@@ -1371,15 +1371,11 @@ static irqreturn_t arm_smmu_combined_irq_handler(int irq, void *dev)
 }
 
 /* IO_PGTABLE API */
-static void __arm_smmu_tlb_sync(struct arm_smmu_device *smmu)
-{
-	arm_smmu_cmdq_issue_sync(smmu);
-}
-
 static void arm_smmu_tlb_sync(void *cookie)
 {
 	struct arm_smmu_domain *smmu_domain = cookie;
-	__arm_smmu_tlb_sync(smmu_domain->smmu);
+
+	arm_smmu_cmdq_issue_sync(smmu_domain->smmu);
 }
 
 static void arm_smmu_tlb_inv_context(void *cookie)
@@ -1404,7 +1400,7 @@ static void arm_smmu_tlb_inv_context(void *cookie)
 	 * to guarantee those are observed before the TLBI. Do be careful, 007.
 	 */
 	arm_smmu_cmdq_issue_cmd(smmu, &cmd);
-	__arm_smmu_tlb_sync(smmu);
+	arm_smmu_cmdq_issue_sync(smmu);
 }
 
 static void arm_smmu_tlb_inv_range_nosync(unsigned long iova, size_t size,
@@ -1793,7 +1789,7 @@ static void arm_smmu_iotlb_sync(struct iommu_domain *domain)
 	struct arm_smmu_device *smmu = to_smmu_domain(domain)->smmu;
 
 	if (smmu)
-		__arm_smmu_tlb_sync(smmu);
+		arm_smmu_cmdq_issue_sync(smmu);
 }
 
 static phys_addr_t