ide: make ide_transfer_pc() static

* Move ->ticks field from struct ide_floppy_obj to ide_drive_t.

* Move idefloppy_transfer_pc() to ide-atapi.c and make
  ide_transfer_pc() use it.

* Always use ide_transfer_pc as a handler in ide_issue_pc().

* Remove no longer used idefloppy_start_pc_transfer(),
  ide*_transfer_pc() and 'handler' argument from ide_issue_pc().

* Make ide_transfer_pc() static.

While at it:

* idefloppy_transfer_pc() -> ide_delayed_transfer_pc()

* IDEFLOPPY_TICKS_DELAY -> IDEFLOPPY_PC_DELAY

* ->ticks -> ->pc_delay

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c
index 8733fe3..7d3d03f 100644
--- a/drivers/scsi/ide-scsi.c
+++ b/drivers/scsi/ide-scsi.c
@@ -270,12 +270,6 @@
 	return 0;
 }
 
-static ide_startstop_t idescsi_transfer_pc(ide_drive_t *drive)
-{
-	return ide_transfer_pc(drive, ide_scsi_get_timeout(drive->pc),
-			       ide_scsi_expiry);
-}
-
 static inline int idescsi_set_direction(struct ide_atapi_pc *pc)
 {
 	switch (pc->c[0]) {
@@ -321,8 +315,7 @@
 	/* Set the current packet command */
 	drive->pc = pc;
 
-	return ide_issue_pc(drive, idescsi_transfer_pc,
-			    ide_scsi_get_timeout(pc), ide_scsi_expiry);
+	return ide_issue_pc(drive, ide_scsi_get_timeout(pc), ide_scsi_expiry);
 }
 
 /*