accel: Remove tcg_available() function

As the function always return 1, it is not needed anymore.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

accel.c

@@ -119,7 +119,6 @@ static void tcg_accel_class_init(ObjectClass *oc, void *data)
 {
     AccelClass *ac = ACCEL_CLASS(oc);
     ac->name = "tcg";
-    ac->available = tcg_available;
     ac->init = tcg_init;
     ac->allowed = &tcg_allowed;
 }

arch_init.c

@@ -1337,11 +1337,6 @@ void cpudef_init(void)
 #endif
 }
 
-int tcg_available(void)
-{
-    return 1;
-}
-
 int kvm_available(void)
 {
 #ifdef CONFIG_KVM

include/sysemu/arch_init.h

@@ -33,7 +33,6 @@ void do_smbios_option(QemuOpts *opts);
 void ram_mig_init(void);
 void cpudef_init(void);
 void audio_init(void);
-int tcg_available(void);
 int kvm_available(void);
 int xen_available(void);