Remove vga_ram_size

The vga_ram_size argument to machine init functions always has the same
value, and is ignored by many machines (including SPARC32 which has an
obsolete ifdef for VGA_RAM_SIZE).

Remove it and push VGA_RAM_SIZE into vga_int.h.

Signed-off-by: Paul Brook <paul@codesourcery.com>
diff --git a/hw/cirrus_vga.c b/hw/cirrus_vga.c
index 32cf3e4..48f8960 100644
--- a/hw/cirrus_vga.c
+++ b/hw/cirrus_vga.c
@@ -3239,13 +3239,13 @@
  *
  ***************************************/
 
-void isa_cirrus_vga_init(int vga_ram_size)
+void isa_cirrus_vga_init(void)
 {
     CirrusVGAState *s;
 
     s = qemu_mallocz(sizeof(CirrusVGAState));
 
-    vga_common_init(&s->vga, vga_ram_size);
+    vga_common_init(&s->vga, VGA_RAM_SIZE);
     cirrus_init_common(s, CIRRUS_ID_CLGD5430, 0);
     s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,
                                      s->vga.screen_dump, s->vga.text_update,
@@ -3301,7 +3301,7 @@
     cirrus_update_memory_access(s);
 }
 
-void pci_cirrus_vga_init(PCIBus *bus, int vga_ram_size)
+void pci_cirrus_vga_init(PCIBus *bus)
 {
     PCICirrusVGAState *d;
     uint8_t *pci_conf;
@@ -3323,7 +3323,7 @@
 
     /* setup VGA */
     s = &d->cirrus_vga;
-    vga_common_init(&s->vga, vga_ram_size);
+    vga_common_init(&s->vga, VGA_RAM_SIZE);
     cirrus_init_common(s, device_id, 1);
 
     s->vga.ds = graphic_console_init(s->vga.update, s->vga.invalidate,