cleanup: Drop pointless return at end of function

A few functions now end with a label.  The next commit will clean them
up.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-ID: <20250407082643.2310002-3-armbru@redhat.com>
[Straightforward conflict with commit 988ad4cceb (hw/loongarch/virt:
Fix cpuslot::cpu set at last in virt_cpu_plug()) resolved]

hw/ppc/mac_newworld.c

@@ -630,8 +630,6 @@ static void core99_instance_init(Object *obj)
     object_property_set_description(obj, "via",
                                     "Set VIA configuration. "
                                     "Valid values are cuda, pmu and pmu-adb");
-
-    return;
 }
 
 static const TypeInfo core99_machine_info = {

hw/ppc/pnv_occ.c

@@ -150,7 +150,6 @@ static void pnv_occ_common_area_write(void *opaque, hwaddr addr,
                                              uint64_t val, unsigned width)
 {
     /* callback function defined to occ common area write */
-    return;
 }
 
 static const MemoryRegionOps pnv_occ_power8_xscom_ops = {

hw/ppc/spapr_hcall.c

@@ -981,7 +981,6 @@ static void spapr_check_setup_free_hpt(SpaprMachineState *spapr,
         /* RADIX->HASH || NOTHING->HASH : Allocate HPT */
         spapr_setup_hpt(spapr);
     }
-    return;
 }
 
 #define FLAGS_MASK              0x01FULL

hw/ppc/spapr_nested.c

@@ -1735,7 +1735,6 @@ static void exit_process_output_buffer(SpaprMachineState *spapr,
     getset_state(spapr, guest, vcpuid, &gsr);
 
     address_space_unmap(CPU(cpu)->as, gsb, len, true, len);
-    return;
 }
 
 static

hw/ppc/spapr_nvdimm.c

@@ -235,8 +235,6 @@ void spapr_dt_persistent_memory(SpaprMachineState *spapr, void *fdt)
         spapr_dt_nvdimm(spapr, fdt, offset, nvdimm);
     }
     g_slist_free(nvdimms);
-
-    return;
 }
 
 static target_ulong h_scm_read_metadata(PowerPCCPU *cpu,