hw/hyperv: remove return after g_assert_not_reached()

This patch is part of a series that moves towards a consistent use of
g_assert_not_reached() rather than an ad hoc mix of different
assertion mechanisms.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-ID: <20240919044641.386068-27-pierrick.bouvier@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>

hw/hyperv/hyperv_testdev.c

@@ -89,7 +89,6 @@ static TestSintRoute *sint_route_find(HypervTestDev *dev,
         }
     }
     g_assert_not_reached();
-    return NULL;
 }
 
 static void sint_route_destroy(HypervTestDev *dev,

hw/hyperv/vmbus.c

@@ -1890,7 +1890,6 @@ static bool complete_create_gpadl(VMBus *vmbus)
     }
 
     g_assert_not_reached();
-    return false;
 }
 
 static void handle_gpadl_teardown(VMBus *vmbus,
@@ -1947,7 +1946,6 @@ static bool complete_teardown_gpadl(VMBus *vmbus)
     }
 
     g_assert_not_reached();
-    return false;
 }
 
 static void handle_open_channel(VMBus *vmbus, vmbus_message_open_channel *msg,
@@ -2021,7 +2019,6 @@ static bool complete_open_channel(VMBus *vmbus)
     }
 
     g_assert_not_reached();
-    return false;
 }
 
 static void vdev_reset_on_close(VMBusDevice *vdev)