hw/timer/exynos4210_mct: Remove unused defines

Remove defines not used anywhere.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/timer/exynos4210_mct.c

@@ -173,13 +173,10 @@ enum LocalTimerRegCntIndexes {
     L_REG_CNT_AMOUNT
 };
 
-#define MCT_NIRQ                6
 #define MCT_SFR_SIZE            0x444
 
 #define MCT_GT_CMP_NUM          4
 
-#define MCT_GT_MAX_VAL          UINT64_MAX
-
 #define MCT_GT_COUNTER_STEP     0x100000000ULL
 #define MCT_LT_COUNTER_STEP     0x100000000ULL
 #define MCT_LT_CNT_LOW_LIMIT    0x100