x86: kconfig: Remove meaningless 'select n'

'select n' selects a constant symbol, which is meaningless and has no
effect. Maybe this was meant to be a 'default n', though bool and
tristate symbols already implicitly default to n.

Discovered in Kconfiglib (https://github.com/ulfalizer/Kconfiglib),
which does more strict checking here:

	kconfiglib.KconfigSyntaxError: board/google/Kconfig:34: Couldn't parse '	select n': expected nonconstant symbol

Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/board/google/Kconfig b/board/google/Kconfig
index e56c026..766db1b 100644
--- a/board/google/Kconfig
+++ b/board/google/Kconfig
@@ -31,7 +31,6 @@
 
 config TARGET_CHROMEBOX_PANTHER
 	bool "Chromebox panther (not available)"
-	select n
 	help
 	  Note: At present this must be used with coreboot. See README.x86
 	  for instructions.