mptfusion: remove redundant kfree checks

Fixes the following smatch warnings:

  drivers/message/fusion/mptfc.c:529 mptfc_target_destroy() info:
    redundant null check on starget->hostdata calling kfree()

  drivers/message/fusion/mptspi.c:465 mptspi_target_destroy() info:
    redundant null check on starget->hostdata calling kfree()

Signed-off-by: Joe Lawrence <joe.lawrence@stratus.com>
Acked-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

drivers/message/fusion/mptfc.c

@@ -525,8 +525,7 @@ mptfc_target_destroy(struct scsi_target *starget)
 		if (ri)	/* better be! */
 			ri->starget = NULL;
 	}
-	if (starget->hostdata)
-		kfree(starget->hostdata);
+	kfree(starget->hostdata);
 	starget->hostdata = NULL;
 }
 

drivers/message/fusion/mptspi.c

@@ -461,8 +461,7 @@ static int mptspi_target_alloc(struct scsi_target *starget)
 static void
 mptspi_target_destroy(struct scsi_target *starget)
 {
-	if (starget->hostdata)
-		kfree(starget->hostdata);
+	kfree(starget->hostdata);
 	starget->hostdata = NULL;
 }