Get rid of HAVE_INIT_TIMER config option

There is redundancy in terms of use of init_timer. We have a Kconfig option to
decide whether a board has init_timer as well as we use a stub for init_timer in
places where we do not have any init_timer defined. Thus, remove the Kconfig
option. Henceforth, all boards that do not have init_timer functionality can
include a stub_timer if required.

Change-Id: I35d38ec686f4dc92861cf9248f9b540323cd98ae
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: http://review.coreboot.org/5569
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/Kconfig

@@ -321,11 +321,6 @@ config HAVE_HARD_RESET
 	  This variable specifies whether a given board has a hard_reset
 	  function, no matter if it's provided by board code or chipset code.
 
-config HAVE_INIT_TIMER
-	bool
-	default n if UDELAY_IO
-	default y
-
 config HAVE_MONOTONIC_TIMER
 	def_bool n
 	help