feat(unionvisor): prep v1.2.0 bundle (#4846)

Author: PoisonPhang

flake.lock

@@ -123,7 +123,7 @@
       flake = false;
     };
     v1_2_0 = {
-      url = "github:unionlabs/union/prod-415-write-migration-to-mint-u-and-remove-poa";
+      url = "github:unionlabs/union/release/uniond/v1.2.0";
       flake = false;
     };
   };

flake.nix

@@ -2,7 +2,6 @@ package v1_2_0
 
 import (
 	"context"
-	"fmt"
 	"math/big"
 
 	"cosmossdk.io/math"
@@ -238,14 +237,3 @@ func getUFromU64(amount int64) sdk.Coin {
 		Amount: math.NewIntFromBigInt(res),
 	}
 }
-
-func getBaseUFromString(amount string) sdk.Coin {
-	res, ok := math.NewIntFromString(amount)
-	if !ok {
-		panic(fmt.Sprintf("Failed to create Int from amount: %s", amount))
-	}
-	return sdk.Coin{
-		Denom:  U_BASE_DENOM,
-		Amount: res,
-	}
-}