block: Drop BlockDriverState member removable

It's a confused mess (see previous commit).  No users remain.
Signed-off-by: NMarkus Armbruster <armbru@redhat.com>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>

block.c

@@ -1614,14 +1614,6 @@ BlockErrorAction bdrv_get_on_error(BlockDriverState *bs, int is_read)
     return is_read ? bs->on_read_error : bs->on_write_error;
 }
 
-void bdrv_set_removable(BlockDriverState *bs, int removable)
-{
-    bs->removable = removable;
-    if (removable && bs == bs_snapshots) {
-        bs_snapshots = NULL;
-    }
-}
-
 int bdrv_is_read_only(BlockDriverState *bs)
 {
     return bs->read_only;

block.h

@@ -207,7 +207,6 @@ int bdrv_get_translation_hint(BlockDriverState *bs);
 void bdrv_set_on_error(BlockDriverState *bs, BlockErrorAction on_read_error,
                        BlockErrorAction on_write_error);
 BlockErrorAction bdrv_get_on_error(BlockDriverState *bs, int is_read);
-void bdrv_set_removable(BlockDriverState *bs, int removable);
 int bdrv_is_read_only(BlockDriverState *bs);
 int bdrv_is_sg(BlockDriverState *bs);
 int bdrv_enable_write_cache(BlockDriverState *bs);

block_int.h

@@ -155,7 +155,6 @@ struct BlockDriverState {
     int read_only; /* if true, the media is read only */
     int keep_read_only; /* if true, the media was requested to stay read only */
     int open_flags; /* flags used to open the file, re-used for re-open */
-    int removable; /* if true, the media can be removed */
     int encrypted; /* if true, the media is encrypted */
     int valid_key; /* if true, a valid encryption key has been set */
     int sg;        /* if true, the device is a /dev/sg* */

blockdev.c

@@ -473,17 +473,12 @@ DriveInfo *drive_init(QemuOpts *opts, int default_to_scsi)
             }
 	    break;
 	case MEDIA_CDROM:
-            bdrv_set_removable(dinfo->bdrv, 1);
             dinfo->media_cd = 1;
 	    break;
 	}
         break;
     case IF_SD:
-        /* FIXME: This isn't really a floppy, but it's a reasonable
-           approximation.  */
     case IF_FLOPPY:
-        bdrv_set_removable(dinfo->bdrv, 1);
-        break;
     case IF_PFLASH:
     case IF_MTD:
         break;

hw/fdc.c

@@ -1813,7 +1813,6 @@ static int fdctrl_connect_drives(FDCtrl *fdctrl)
         fd_revalidate(drive);
         if (drive->bs) {
             drive->media_changed = 1;
-            bdrv_set_removable(drive->bs, 1);
             bdrv_set_dev_ops(drive->bs, &fdctrl_block_ops, drive);
         }
     }

hw/ide/core.c

@@ -1864,7 +1864,6 @@ int ide_init_drive(IDEState *s, BlockDriverState *bs, IDEDriveKind kind,
     }
 
     ide_reset(s);
-    bdrv_set_removable(bs, s->drive_kind == IDE_CD);
     return 0;
 }
 

hw/scsi-disk.c

@@ -1233,7 +1233,6 @@ static int scsi_initfn(SCSIDevice *dev, uint8_t scsi_type)
 
     s->qdev.type = scsi_type;
     qemu_add_vm_change_state_handler(scsi_dma_restart_cb, s);
-    bdrv_set_removable(s->bs, scsi_type == TYPE_ROM);
     add_boot_device_path(s->qdev.conf.bootindex, &dev->qdev, ",0");
     return 0;
 }

hw/scsi-generic.c

@@ -450,7 +450,6 @@ static int scsi_generic_initfn(SCSIDevice *dev)
         }
     }
     DPRINTF("block size %d\n", s->qdev.blocksize);
-    bdrv_set_removable(s->bs, 0);
     return 0;
 }
 

hw/virtio-blk.c

@@ -599,7 +599,6 @@ VirtIODevice *virtio_blk_init(DeviceState *dev, BlockConf *conf,
     s->qdev = dev;
     register_savevm(dev, "virtio-blk", virtio_blk_id++, 2,
                     virtio_blk_save, virtio_blk_load, s);
-    bdrv_set_removable(s->bs, 0);
     bdrv_set_dev_ops(s->bs, &virtio_block_ops, s);
     s->bs->buffer_alignment = conf->logical_block_size;