Drop prototype guarding for romcc

Commit "romcc: Don't fail on function prototypes" (11a7db3b) [1]
made romcc not choke on function prototypes anymore. This
allows us to get rid of a lot of ifdefs guarding __ROMCC__ .

[1] http://review.coreboot.org/2424

Change-Id: Ib1be3b294e5b49f5101f2e02ee1473809109c8ac
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/3216
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/include/delay.h

@@ -1,8 +1,6 @@
 #ifndef DELAY_H
 #define DELAY_H
 
-#if !defined( __ROMCC__)
-
 #if CONFIG_HAVE_INIT_TIMER
 void init_timer(void);
 #else
@@ -12,6 +10,4 @@ void init_timer(void);
 void udelay(unsigned usecs);
 void mdelay(unsigned msecs);
 void delay(unsigned secs);
-
-#endif
 #endif /* DELAY_H */