fix: remove all RegisterRESTRoutes (cosmos#11797)

Author: facundomedica

app.go

@@ -580,8 +580,7 @@ func (app *SimApp) RegisterAPIRoutes(apiSvr *api.Server, apiConfig config.APICon
 	// Register new tendermint queries routes from grpc-gateway.
 	tmservice.RegisterGRPCGatewayRoutes(clientCtx, apiSvr.GRPCGatewayRouter)
 
-	// Register legacy and grpc-gateway routes for all modules.
-	ModuleBasics.RegisterRESTRoutes(clientCtx, apiSvr.Router)
+	// Register grpc-gateway routes for all modules.
 	ModuleBasics.RegisterGRPCGatewayRoutes(clientCtx, apiSvr.GRPCGatewayRouter)
 
 	// register swagger API from root so that other applications can override easily