hw/i386/pc: Remove pc_compat_3_0[] array

The pc_compat_3_0[] array was only used by the pc-q35-3.0
and pc-i440fx-3.0 machines, which got removed. Remove it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20260307150042.78030-3-philmd@linaro.org>

hw/i386/pc.c

@@ -214,13 +214,6 @@ GlobalProperty pc_compat_3_1[] = {
 };
 const size_t pc_compat_3_1_len = G_N_ELEMENTS(pc_compat_3_1);
 
-GlobalProperty pc_compat_3_0[] = {
-    { TYPE_X86_CPU, "x-hv-synic-kvm-only", "on" },
-    { "Skylake-Server" "-" TYPE_X86_CPU, "pku", "off" },
-    { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "pku", "off" },
-};
-const size_t pc_compat_3_0_len = G_N_ELEMENTS(pc_compat_3_0);
-
 /*
  * @PC_FW_DATA:
  * Size of the chunk of memory at the top of RAM for the BIOS ACPI tables

include/hw/i386/pc.h

@@ -277,9 +277,6 @@ extern const size_t pc_compat_4_0_len;
 extern GlobalProperty pc_compat_3_1[];
 extern const size_t pc_compat_3_1_len;
 
-extern GlobalProperty pc_compat_3_0[];
-extern const size_t pc_compat_3_0_len;
-
 #define DEFINE_PC_MACHINE(suffix, namestr, initfn, optsfn) \
     static void pc_machine_##suffix##_class_init(ObjectClass *oc, \
                                                  const void *data) \