x86: edison: Remove staled comments from configuration header

Since some options had been moved to defconfig from header,
the leftover comments are not needed anymore. Remove them.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/include/configs/edison.h b/include/configs/edison.h
index 7e2f9c1..a6155ba 100644
--- a/include/configs/edison.h
+++ b/include/configs/edison.h
@@ -8,10 +8,6 @@
 
 #include <asm/ibmpc.h>
 
-/* ACPI */
-
-/* DISK Partition support */
-
 /* Miscellaneous configurable options */
 
 #define CONFIG_SYS_CBSIZE	2048