Remove unimplemented Kconfig option

arch/arm/measuremore/Kconfig

@@ -13,8 +13,4 @@ config MEASUREMORE_TIMESTAMP_TYPE_KTIME
 	bool "Call ktime_get(), export ktime_to_ns(...)"
 
 config MEASUREMORE_TIMESTAMP_TYPE_NSTIMEOFDAY
-	bool "Call getnstimeofday()"
-
-config MEASUREMORE_TIMESTAMP_TYPE_PMCCNTR_WITH_OVERFLOWS
-    depends on MEASUREMORE_TIMESTAMP_TYPE_PMCCNTR
-    bool "Record PMCCNTR overflows"
+	bool "Call getnstimeofday()"
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