KVM: x86 emulator: drop parentheses in repreat macros

The parenthese make is impossible to use the macros with initializers that
require braces.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

arch/x86/kvm/emulate.c

@@ -95,10 +95,10 @@
 #define Src2One     (3<<29)
 #define Src2Mask    (7<<29)
 
-#define X2(x) (x), (x)
-#define X3(x) X2(x), (x)
+#define X2(x) x, x
+#define X3(x) X2(x), x
 #define X4(x) X2(x), X2(x)
-#define X5(x) X4(x), (x)
+#define X5(x) X4(x), x
 #define X6(x) X4(x), X2(x)
 #define X7(x) X4(x), X3(x)
 #define X8(x) X4(x), X4(x)