migrate usage of sdk.Math to cosmossdk.io/math

[tac0turtle]

Summary

migrate the usage of sdk.Math throughout the repo to cosmossdk.io/math.

types/math.go is an alias to cosmossdk.io/math, we should migrate all calls to types/math.go to the go mod and remove the alias in types.

Work

• remove types/math.go usage in the repo, replace it with cosmossdk.io/math usage.
• remove types/math.go

[alexanderbez]

Note, you cannot remove types/math.go as you still need:

func (ip IntProto) String() string {
	return ip.Int.String()
}

func (dp DecProto) String() string {
	return dp.Dec.String()
}

[tac0turtle]

true, at least its less code to maintain.

Is there anyway to remove those?