[NET_SCHED]: kill obsolete NET_CLS_POLICE option

The code is already gone for about half a year, the config option
has been kept around to select the replacement options for easier
upgrades. This seems long enough, people upgrading from older
kernels will have to reconfigure a lot anyway.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/sched/Kconfig

@@ -476,15 +476,6 @@ config NET_ACT_SIMP
 	  To compile this code as a module, choose M here: the
 	  module will be called simple.
 
-config NET_CLS_POLICE
-	bool "Traffic Policing (obsolete)"
-	select NET_CLS_ACT
-	select NET_ACT_POLICE
-	---help---
-	  Say Y here if you want to do traffic policing, i.e. strict
-	  bandwidth limiting. This option is obsolete and just selects
-	  the option replacing it. It will be removed in the future.
-
 config NET_CLS_IND
 	bool "Incoming device classification"
 	depends on NET_CLS_U32 || NET_CLS_FW