refactor: use the built-in max/min to simplify the code (#24112)

Signed-off-by: riyueguang <rustruby@outlook.com>

math/int_test.go

@@ -221,20 +221,6 @@ func (s *intTestSuite) TestIdentInt() {
 	}
 }
 
-func minint(i1, i2 int64) int64 {
-	if i1 < i2 {
-		return i1
-	}
-	return i2
-}
-
-func maxint(i1, i2 int64) int64 {
-	if i1 > i2 {
-		return i1
-	}
-	return i2
-}
-
 func (s *intTestSuite) TestArithInt() {
 	for d := 0; d < 1000; d++ {
 		n1 := int64(rand.Int31())
@@ -254,8 +240,8 @@ func (s *intTestSuite) TestArithInt() {
 			{i1.SubRaw(n2), n1 - n2},
 			{i1.MulRaw(n2), n1 * n2},
 			{i1.QuoRaw(n2), n1 / n2},
-			{math.MinInt(i1, i2), minint(n1, n2)},
-			{math.MaxInt(i1, i2), maxint(n1, n2)},
+			{math.MinInt(i1, i2), min(n1, n2)},
+			{math.MaxInt(i1, i2), max(n1, n2)},
 			{i1.Neg(), -n1},
 			{i1.Abs(), n1},
 			{i1.Neg().Abs(), n1},

math/uint_test.go

@@ -136,8 +136,8 @@ func (s *uintTestSuite) TestArithUint() {
 			{u1.AddUint64(n2), n1 + n2},
 			{u1.MulUint64(n2), n1 * n2},
 			{u1.QuoUint64(n2), n1 / n2},
-			{sdkmath.MinUint(u1, u2), minuint(n1, n2)},
-			{sdkmath.MaxUint(u1, u2), maxuint(n1, n2)},
+			{sdkmath.MinUint(u1, u2), min(n1, n2)},
+			{sdkmath.MaxUint(u1, u2), max(n1, n2)},
 			{u1.Incr(), n1 + 1},
 		}
 
@@ -316,20 +316,6 @@ func (s *uintTestSuite) TestRelativePow() {
 	}
 }
 
-func minuint(i1, i2 uint64) uint64 {
-	if i1 < i2 {
-		return i1
-	}
-	return i2
-}
-
-func maxuint(i1, i2 uint64) uint64 {
-	if i1 > i2 {
-		return i1
-	}
-	return i2
-}
-
 func TestRoundTripMarshalToUint(t *testing.T) {
 	values := []uint64{
 		0,