Remove support the old format returned by the kernel.

None of the mainstream kernels (since 2.6.8 where snapshots were introduced)
use this format.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>

---
 lib/snapshot/snapshot.c |   14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

Index: LVM2.2.02.39/lib/snapshot/snapshot.c
===================================================================
--- LVM2.2.02.39.orig/lib/snapshot/snapshot.c	2008-07-09 19:03:25.000000000 +0200
+++ LVM2.2.02.39/lib/snapshot/snapshot.c	2008-07-09 19:03:35.000000000 +0200
@@ -97,18 +97,12 @@ static int _snap_target_percent(void **t
 			   char *params, uint64_t *total_numerator,
 			   uint64_t *total_denominator, float *percent)
 {
-	float percent2;
 	uint64_t numerator, denominator;
 
-	if (strchr(params, '/')) {
-		if (sscanf(params, "%" PRIu64 "/%" PRIu64,
-			   &numerator, &denominator) == 2) {
-			*total_numerator += numerator;
-			*total_denominator += denominator;
-		}
-	} else if (sscanf(params, "%f", &percent2) == 1) {
-		*percent += percent2;
-		*percent /= 2;
+	if (sscanf(params, "%" PRIu64 "/%" PRIu64,
+		   &numerator, &denominator) == 2) {
+		*total_numerator += numerator;
+		*total_denominator += denominator;
 	}
 
 	return 1;