chore: remove unused ProposalContents function

Author: colin-axner

CHANGELOG.md

@@ -59,6 +59,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (07-tendermint) [\#1896](https://github.com/cosmos/ibc-go/pull/1896) Remove error return from `IterateConsensusStateAscending` in `07-tendermint`.
 * (apps/27-interchain-accounts) [\#2638](https://github.com/cosmos/ibc-go/pull/2638) Interchain accounts host and controller Keepers now expects a keeper which fulfills the expected `exported.ScopedKeeper` interface for the capability keeper.
 * (06-solomachine) [\#2761](https://github.com/cosmos/ibc-go/pull/2761) Removed deprecated `ClientId` field from `Misbehaviour` and `allow_update_after_proposal` field from `ClientState`.
+* (apps) [\#3154](https://github.com/cosmos/ibc-go/pull/3154)  Remove unused `ProposalContents` function.
 * (apps) [#3149](https://github.com/cosmos/ibc-go/pull/3149) Remove legacy interface function `RandomizedParams`, which is no longer used.
 
 ### State Machine Breaking

modules/apps/27-interchain-accounts/module.go

@@ -201,11 +201,6 @@ func (AppModule) GenerateGenesisState(simState *module.SimulationState) {
 	simulation.RandomizedGenState(simState)
 }
 
-// ProposalContents doesn't return any content functions for governance proposals.
-func (AppModule) ProposalContents(_ module.SimulationState) []simtypes.WeightedProposalMsg {
-	return nil
-}
-
 // WeightedOperations is unimplemented.
 func (am AppModule) WeightedOperations(_ module.SimulationState) []simtypes.WeightedOperation {
 	return nil

modules/apps/29-fee/module.go

@@ -132,11 +132,6 @@ func (am AppModule) EndBlock(ctx sdk.Context, req abci.RequestEndBlock) []abci.V
 func (AppModule) GenerateGenesisState(_ *module.SimulationState) {
 }
 
-// ProposalContents doesn't return any content functions for governance proposals.
-func (AppModule) ProposalContents(_ module.SimulationState) []simtypes.WeightedProposalMsg {
-	return nil
-}
-
 // RegisterStoreDecoder registers a decoder for 29-fee module's types
 func (am AppModule) RegisterStoreDecoder(_ sdk.StoreDecoderRegistry) {
 }

modules/apps/transfer/module.go

@@ -144,11 +144,6 @@ func (AppModule) GenerateGenesisState(simState *module.SimulationState) {
 	simulation.RandomizedGenState(simState)
 }
 
-// ProposalContents doesn't return any content functions for governance proposals.
-func (AppModule) ProposalContents(_ module.SimulationState) []simtypes.WeightedProposalMsg {
-	return nil
-}
-
 // RegisterStoreDecoder registers a decoder for transfer module's types
 func (am AppModule) RegisterStoreDecoder(sdr sdk.StoreDecoderRegistry) {
 	sdr[types.StoreKey] = simulation.NewDecodeStore(am.keeper)

modules/core/module.go

@@ -169,11 +169,6 @@ func (AppModule) GenerateGenesisState(simState *module.SimulationState) {
 	simulation.RandomizedGenState(simState)
 }
 
-// ProposalContents doesn't return any content functions for governance proposals.
-func (AppModule) ProposalContents(_ module.SimulationState) []simtypes.WeightedProposalMsg {
-	return nil
-}
-
 // RegisterStoreDecoder registers a decoder for ibc module's types
 func (am AppModule) RegisterStoreDecoder(sdr sdk.StoreDecoderRegistry) {
 	sdr[exported.StoreKey] = simulation.NewDecodeStore(*am.keeper)