Removes stray empty line from code

This patch removes stray empty line from busybox code
reported by script find_stray_empty_lines

Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Akhilesh Kumar <akhilesh.k@samsung.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

libbb/xfuncs.c

@@ -207,7 +207,6 @@ off_t FAST_FUNC fdlength(int fd)
 			else bottom = pos;
 
 		// If we can't, it's smaller.
-
 		} else {
 			if (bottom == top) {
 				if (!top) return 0;