[DCCP]: Remove redundant dependency on IP_DCCP

This cleans up the consequences of an earlier patch which
introduced the `if IP_DCCP' clause into net/dccp/Kconfig.

The CCID Kconfig menu is sourced within this clause; as a
consequence, all tests of type `depends on IP_DCCP' are now
redundant.
Signed-off-by: NGerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: NIan McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/dccp/ccids/Kconfig

 menu "DCCP CCIDs Configuration (EXPERIMENTAL)"
-	depends on IP_DCCP && EXPERIMENTAL
+	depends on EXPERIMENTAL
 
 config IP_DCCP_CCID2
 	tristate "CCID2 (TCP-Like) (EXPERIMENTAL)"
-	depends on IP_DCCP
 	def_tristate IP_DCCP
 	select IP_DCCP_ACKVEC
 	---help---
@@ -38,7 +37,6 @@ config IP_DCCP_CCID2_DEBUG
 
 config IP_DCCP_CCID3
 	tristate "CCID3 (TCP-Friendly) (EXPERIMENTAL)"
-	depends on IP_DCCP
 	def_tristate IP_DCCP
 	---help---
 	  CCID 3 denotes TCP-Friendly Rate Control (TFRC), an equation-based