Kconfig: remove a few puzzling comments

These comments mention CONFIG options that do not exist: not as a symbol
in a Kconfig file (without the CONFIG_ prefix) and neither as a symbol
(with that prefix) in the code.

There's one reference to XSCALE_PMU_TIMER as a negative dependency.
But XSCALE_PMU_TIMER is never defined (CONFIG_XSCALE_PMU_TIMER is
also unused in the code). It shows up with type "unknown" if you search
for it in menuconfig. Apparently a negative dependency on an unknown
symbol is always true. That negative dependency can be removed too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7536b9c..49e41d6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1083,10 +1083,9 @@
 	  Enable support for iWMMXt context switching at run time if
 	  running on a CPU that supports it.
 
-#  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
 config XSCALE_PMU
 	bool
-	depends on CPU_XSCALE && !XSCALE_PMU_TIMER
+	depends on CPU_XSCALE
 	default y
 
 config CPU_HAS_PMU
diff --git a/arch/cris/Kconfig.debug b/arch/cris/Kconfig.debug
index 0b9a630..14881e8 100644
--- a/arch/cris/Kconfig.debug
+++ b/arch/cris/Kconfig.debug
@@ -1,6 +1,5 @@
 menu "Kernel hacking"
 
-#bool 'Debug kmalloc/kfree' CONFIG_DEBUG_MALLOC
 config PROFILING
 	bool "Kernel profiling support"
 
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 2209e35..c2d11fe 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -66,8 +66,6 @@
           Say Y here if you want the console on the Newport aka XL graphics
           card of your Indy.  Most people say Y here.
 
-#  bool 'IODC console' CONFIG_IODC_CONSOLE
-
 config DUMMY_CONSOLE
 	bool
 	depends on VGA_CONSOLE!=y || SGI_NEWPORT_CONSOLE!=y 
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index cbb505b..251f662 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -163,8 +163,6 @@
 	  operating on your network. Read
 	  <file:Documentation/filesystems/nfs/nfsroot.txt> for details.
 
-# not yet ready..
-#   bool '    IP: ARP support' CONFIG_IP_PNP_ARP
 config NET_IPIP
 	tristate "IP: tunneling"
 	select INET_TUNNEL