hw/misc/mips_itu: Remove MIPSITUState::cpu0 field

Since previous commit the MIPSITUState::cpu0 field is not
used anymore. Remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240209090513.9401-6-philmd@linaro.org>
diff --git a/hw/mips/cps.c b/hw/mips/cps.c
index 988ceaa..07b73b0 100644
--- a/hw/mips/cps.c
+++ b/hw/mips/cps.c
@@ -103,8 +103,6 @@
     /* Inter-Thread Communication Unit */
     if (itu_present) {
         object_initialize_child(OBJECT(dev), "itu", &s->itu, TYPE_MIPS_ITU);
-        object_property_set_link(OBJECT(&s->itu), "cpu[0]",
-                                 OBJECT(first_cpu), &error_abort);
         object_property_set_uint(OBJECT(&s->itu), "num-fifo", 16,
                                 &error_abort);
         object_property_set_uint(OBJECT(&s->itu), "num-semaphores", 16,
diff --git a/hw/misc/mips_itu.c b/hw/misc/mips_itu.c
index d259a88..9705efe 100644
--- a/hw/misc/mips_itu.c
+++ b/hw/misc/mips_itu.c
@@ -527,10 +527,6 @@
                    s->num_semaphores);
         return;
     }
-    if (!s->cpu0) {
-        error_setg(errp, "Missing 'cpu[0]' property");
-        return;
-    }
 
     s->cell = g_new(ITCStorageCell, get_num_cells(s));
 }
@@ -558,7 +554,6 @@
                       ITC_FIFO_NUM_MAX),
     DEFINE_PROP_UINT32("num-semaphores", MIPSITUState, num_semaphores,
                       ITC_SEMAPH_NUM_MAX),
-    DEFINE_PROP_LINK("cpu[0]", MIPSITUState, cpu0, TYPE_MIPS_CPU, ArchCPU *),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/include/hw/misc/mips_itu.h b/include/hw/misc/mips_itu.h
index 3a7330a..de7400c 100644
--- a/include/hw/misc/mips_itu.h
+++ b/include/hw/misc/mips_itu.h
@@ -73,7 +73,6 @@
 
     /* SAAR */
     uint64_t *saar;
-    ArchCPU *cpu0;
 };
 
 /* Get ITC Configuration Tag memory region. */