target/xtensa: drop function xtensa_timer_irq

It's a one-liner used in a single place, move its implementation there
and remove its declaration.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

hw/xtensa/pic_cpu.c

@@ -77,18 +77,13 @@ static void xtensa_set_irq(void *opaque, int irq, int active)
     }
 }
 
-void xtensa_timer_irq(CPUXtensaState *env, uint32_t id, uint32_t active)
-{
-    qemu_set_irq(env->irq_inputs[env->config->timerint[id]], active);
-}
-
 static void xtensa_ccompare_cb(void *opaque)
 {
     XtensaCcompareTimer *ccompare = opaque;
     CPUXtensaState *env = ccompare->env;
     unsigned i = ccompare - env->ccompare;
 
-    xtensa_timer_irq(env, i, 1);
+    qemu_set_irq(env->irq_inputs[env->config->timerint[i]], 1);
 }
 
 void xtensa_irq_init(CPUXtensaState *env)

target/xtensa/cpu.h

@@ -570,7 +570,6 @@ void xtensa_sim_open_console(Chardev *chr);
 void check_interrupts(CPUXtensaState *s);
 void xtensa_irq_init(CPUXtensaState *env);
 void *xtensa_get_extint(CPUXtensaState *env, unsigned extint);
-void xtensa_timer_irq(CPUXtensaState *env, uint32_t id, uint32_t active);
 int cpu_xtensa_signal_handler(int host_signum, void *pinfo, void *puc);
 void xtensa_cpu_list(FILE *f, fprintf_function cpu_fprintf);
 void xtensa_sync_window_from_phys(CPUXtensaState *env);