chore: Integrate on top of upgrade-15 (#9436)

Fixes #9260

## Description

As of Agoric/agoric-3-proposals#157 ,
`a3p:latest` now includes results of
[upgrade-15](https://github.com/Agoric/agoric-sdk/releases/tag/agoric-upgrade-15).
This removes the duplication from the UNRELEASED upgrade handler and
a3p-integration.

### Security Considerations

n/a

### Scaling Considerations

n/a

### Documentation Considerations

n/a

### Testing Considerations

How much of the [upgrade-15
a3p-integration](https://github.com/Agoric/agoric-sdk/tree/agoric-upgrade-15/a3p-integration/proposals/a%3Aupgrade-15)
should remain in
[a:upgrade-next](https://github.com/Agoric/agoric-sdk/tree/master/a3p-integration/proposals/a%3Aupgrade-next)?
I'm thinking specifically about
[exit-reclaim.test.js](https://github.com/Agoric/agoric-sdk/blob/master/a3p-integration/proposals/a%3Aupgrade-next/exit-reclaim.test.js)
and associated preparation.

### Upgrade Considerations

@Chris-Hibbert Does
[initial.test.js](https://github.com/Agoric/agoric-sdk/blob/master/a3p-integration/proposals/a%3Aupgrade-next/initial.test.js)
needs some extension for the vaultFactory and/or scaledPriceAuthority
upgrades?

a3p-integration/package.json

@@ -1,7 +1,7 @@
 {
   "private": true,
   "agoricSyntheticChain": {
-    "fromTag": "use-upgrade-14"
+    "fromTag": "latest"
   },
   "scripts": {
     "build": "yarn run build:sdk && yarn run build:submissions && yarn run build:synthetic-chain",

a3p-integration/proposals/a:upgrade-next/prepare.sh

@@ -7,23 +7,3 @@ set -uxeo pipefail
 # actions are executed in the previous chain software, and the effects are
 # persisted so they can be used in the steps after the upgrade is complete,
 # such as in the "use" or "test" steps, or further proposal layers.
-
-printISTBalance() {
-  addr=$(agd keys show -a "$1" --keyring-backend=test)
-  agd query bank balances "$addr" -o json \
-    | jq -c '.balances[] | select(.denom=="uist")'
-
-}
-
-echo TEST: Offer with bad invitation
-printISTBalance gov1
-
-badInvitationOffer=$(mktemp)
-cat > "$badInvitationOffer" << 'EOF'
-{"body":"#{\"method\":\"executeOffer\",\"offer\":{\"id\":\"bad-invitation-15\",\"invitationSpec\":{\"callPipe\":[[\"badMethodName\"]],\"instancePath\":[\"reserve\"],\"source\":\"agoricContract\"},\"proposal\":{\"give\":{\"Collateral\":{\"brand\":\"$0.Alleged: IST brand\",\"value\":\"+15000\"}}}}}","slots":["board0257"]}
-EOF
-
-PATH=/usr/src/agoric-sdk/node_modules/.bin:$PATH
-agops perf satisfaction --keyring-backend=test send --executeOffer "$badInvitationOffer" --from gov1 || true
-
-printISTBalance gov1

a3p-integration/proposals/a:upgrade-next/tsconfig.json

@@ -6,6 +6,7 @@
     "checkJs": true,
     "strict": false,
     "strictNullChecks": true,
+    "noEmit": true,
     "noImplicitThis": true
   }
 }

golang/cosmos/app/app.go

@@ -895,11 +895,9 @@ func unreleasedUpgradeHandler(app *GaiaApp, targetUpgrade string) func(sdk.Conte
 			// Each CoreProposalStep runs sequentially, and can be constructed from
 			// one or more modules executing in parallel within the step.
 			CoreProposalSteps = []vm.CoreProposalStep{
-				/* upgrade-15 evals */
 				// Upgrade ZCF only
 				vm.CoreProposalStepForModules("@agoric/builders/scripts/vats/upgrade-zcf.js"),
-				// Upgrade walletFactory
-				vm.CoreProposalStepForModules("@agoric/builders/scripts/smart-wallet/build-wallet-factory2-upgrade.js"),
+
 				// upgrade the provisioning vat
 				vm.CoreProposalStepForModules("@agoric/builders/scripts/vats/replace-provisioning.js"),
 				// Enable low-level Orchestration.
@@ -916,11 +914,11 @@ func unreleasedUpgradeHandler(app *GaiaApp, targetUpgrade string) func(sdk.Conte
 					"@agoric/builders/scripts/vats/updateStkAtomPriceFeed.js",
 				),
 				// Add new auction contract. The old one will be retired shortly.
-				vm.CoreProposalStepForModules( "@agoric/builders/scripts/vats/add-auction.js"),
+				vm.CoreProposalStepForModules("@agoric/builders/scripts/vats/add-auction.js"),
 				// upgrade vaultFactory.
-				vm.CoreProposalStepForModules( "@agoric/builders/scripts/vats/upgradeVaults.js"),
+				vm.CoreProposalStepForModules("@agoric/builders/scripts/vats/upgradeVaults.js"),
 				// upgrade scaledPriceAuthorities.
-				vm.CoreProposalStepForModules( "@agoric/builders/scripts/vats/upgradeScaledPriceAuthorities.js"),
+				vm.CoreProposalStepForModules("@agoric/builders/scripts/vats/upgradeScaledPriceAuthorities.js"),
 			}
 		}