NFSv4.2: Remove ifdef CONFIG_NFSD from NFSv4.2 client SSC code.

The client SSC code should not depend on any of the CONFIG_NFSD config.
This patch removes all CONFIG_NFSD from NFSv4.2 client SSC code and
simplifies the config of CONFIG_NFS_V4_2_SSC_HELPER, NFSD_V4_2_INTER_SSC.

Signed-off-by: Dai Ngo <dai.ngo@oracle.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
diff --git a/fs/Kconfig b/fs/Kconfig
index a55bda4..afa585e 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -334,8 +334,8 @@
 	default y
 
 config NFS_V4_2_SSC_HELPER
-	tristate
-	default y if NFS_V4=y || NFS_FS=y
+	bool
+	default y if NFS_V4_2
 
 source "net/sunrpc/Kconfig"
 source "fs/ceph/Kconfig"