Remove CONFIG_KVM compile option.

Qemu and KVM should use the same bios build. All differences should be
handled in runtime.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
diff --git a/src/config.h b/src/config.h
index e93b080..fa0dd1d 100644
--- a/src/config.h
+++ b/src/config.h
@@ -12,8 +12,6 @@
 #define CONFIG_APPNAME6 "BOCHS "
 #define CONFIG_APPNAME4 "BXPC"
 
-// Configure for use with KVM.
-#define CONFIG_KVM 0
 // Configure as a coreboot payload.
 #define CONFIG_COREBOOT 0