hw:aspeed: drop warning and bogus ram_size fixup

It was useless to try fixup ram_size and print warning
on guest access to config register to begin with.

Now previous patch made sure that SDMC can not be realized
with invalid RAM size, so there is no case where warning
and not used ram_size fixup could be triggered.

So remove now dead code.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>

hw/misc/aspeed_sdmc.c

@@ -219,17 +219,8 @@ static int aspeed_get_ram_feat(AspeedSDMCState *s)
 {
     AspeedSDMCClass *asc = ASPEED_SDMC_GET_CLASS(s);
     int ram_mb = s->ram_size >> 20;
-    gpointer val;
+    gpointer val = g_hash_table_lookup(asc->ram2feat, GINT_TO_POINTER(ram_mb));
 
-    if (g_hash_table_contains(asc->ram2feat, GINT_TO_POINTER(ram_mb))) {
-        val = g_hash_table_lookup(asc->ram2feat, GINT_TO_POINTER(ram_mb));
-        return GPOINTER_TO_INT(val);
-    }
-
-    warn_report("Invalid RAM size 0x%" PRIx64 ". Using default %dM",
-                 s->ram_size, asc->fallback_ram_size);
-    s->ram_size = asc->fallback_ram_size << 20;
-    val = g_hash_table_lookup(asc->ram2feat, &asc->fallback_ram_size);
     return GPOINTER_TO_INT(val);
 }