examples/qos_sched: fix makefile
examples/qos_sched: fix makefile

The example does not compile as the linker complains about duplicated
symbols.

Remove -lsched from LDLIBS, it is already present in rte.app.mk and
added by the DPDK framework automatically.

Signed-off-by: Olivier Matz <dfcc1510895413197abb4336e39bb0a3906cba71@6wind.com>
Acked-by: Thomas Monjalon <ee2fa8b2681c737f775687e475dcbf2028a412f1@6wind.com>

phermansson/dpdk,phermansson/dpdk,phermansson/dpdk,phermansson/dpdk