fs/ntfs3: Remove duplicated assignment to variable r

The assignment to variable r is duplicated, the second assignment
is redundant and can be removed.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>

fs/ntfs3/run.c

@@ -563,7 +563,6 @@ bool run_insert_range(struct runs_tree *run, CLST vcn, CLST len)
 	e = run->runs + run->count;
 	r = run->runs + index;
 
-	r = run->runs + index;
 	if (vcn > r->vcn)
 		r += 1;