MT#55283 remove unused timeval helpers

Change-Id: I53da8a84bac3a5235d5a5155b08a6a3419ddb1a8

lib/auxlib.h

@@ -360,17 +360,6 @@ INLINE long long timeval_diff(const struct timeval *a, const struct timeval *b)
 INLINE void timeval_subtract(struct timeval *result, const struct timeval *a, const struct timeval *b) {
 	timeval_from_us(result, timeval_diff(a, b));
 }
-INLINE void timeval_multiply(struct timeval *result, const struct timeval *a, const long multiplier) {
-	timeval_from_us(result, timeval_us(a) * multiplier);
-}
-INLINE void timeval_divide(struct timeval *result, const struct timeval *a, const long divisor) {
-	if (divisor == 0) {
-		result->tv_sec = 0;
-		result->tv_usec = 0;
-		return ;
-	}
-	timeval_from_us(result, timeval_us(a) / divisor);
-}
 INLINE void timeval_add(struct timeval *result, const struct timeval *a, const struct timeval *b) {
 	timeval_from_us(result, timeval_us(a) + timeval_us(b));
 }