btrfs: check-integrity: remove btrfsic_mount() function

The function btrfsic_mount() is part of the deprecated check-integrity
functionality.

Now let's remove the main entry point of check-integrity, and thankfully
most of the check-integrity code is self-contained inside
check-integrity.c, we can safely remove the function without huge
changes to btrfs code base.
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

fs/btrfs/check-integrity.h

@@ -6,9 +6,6 @@
 #ifndef BTRFS_CHECK_INTEGRITY_H
 #define BTRFS_CHECK_INTEGRITY_H
 
-int btrfsic_mount(struct btrfs_fs_info *fs_info,
-		  struct btrfs_fs_devices *fs_devices,
-		  int including_extent_data, u32 print_mask);
 void btrfsic_unmount(struct btrfs_fs_devices *fs_devices);
 
 #endif

fs/btrfs/disk-io.c

@@ -3511,18 +3511,6 @@ int __cold open_ctree(struct super_block *sb, struct btrfs_fs_devices *fs_device
 				   "auto enabling async discard");
 	}
 
-#ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
-	if (btrfs_test_opt(fs_info, CHECK_INTEGRITY)) {
-		ret = btrfsic_mount(fs_info, fs_devices,
-				    btrfs_test_opt(fs_info,
-					CHECK_INTEGRITY_DATA) ? 1 : 0,
-				    fs_info->check_integrity_print_mask);
-		if (ret)
-			btrfs_warn(fs_info,
-				"failed to initialize integrity check module: %d",
-				ret);
-	}
-#endif
 	ret = btrfs_read_qgroup_config(fs_info);
 	if (ret)
 		goto fail_trans_kthread;