Revert "iommu: fix build error when CONFIG_IOMMU_API is off"

virt inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I61SPO
CVE: NA

--------------------------------

This reverts commit 3afa66c6.
Signed-off-by: NKunkun Jiang <jiangkunkun@huawei.com>
Reviewed-by: NKeqian Zhu <zhukeqian1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

include/linux/iommu.h

@@ -1221,7 +1221,6 @@ iommu_sva_bind_group(struct iommu_group *group, struct mm_struct *mm,
 	return NULL;
 }
 
-static inline
 int iommu_bind_guest_msi(struct iommu_domain *domain,
 			 dma_addr_t giova, phys_addr_t gpa, size_t size)
 {