frv: remove unused inline function is_in_rom()

The function is not used anywhere in the tree (anymore) and this is the
last remaining instance, so remove it.

Signed-off-by: Tobias Klauser <[e-mail]>
Cc: David Howells <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

arch/frv/include/asm/sections.h

···
 extern unsigned long __nongprelbss memory_end;
 extern unsigned long __nongprelbss rom_length;
 
-/* determine if we're running from ROM */
-static inline int is_in_rom(unsigned long addr)
-{
-	return 0; /* default case: not in ROM */
-}
-
 #endif
 #endif
 #endif /* _ASM_SECTIONS_H */