MIPS: ftrace: Remove redundant #ifdef CONFIG_DYNAMIC_FTRACE

There exists redundant #ifdef CONFIG_DYNAMIC_FTRACE in ftrace.c, remove it.
Signed-off-by: Zejiang Tang <tangzejiang@loongson.cn>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/kernel/ftrace.c

@@ -37,10 +37,6 @@ void arch_ftrace_update_code(int command)
 	ftrace_modify_all_code(command);
 }
 
-#endif
-
-#ifdef CONFIG_DYNAMIC_FTRACE
-
 #define JAL 0x0c000000		/* jump & link: ip --> ra, jump to target */
 #define ADDR_MASK 0x03ffffff	/*  op_code|addr : 31...26|25 ....0 */
 #define JUMP_RANGE_MASK ((1UL << 28) - 1)