chore: [x/feegrant] remove unnecessary logging in simulation (#10262)

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## Description

Closes: #XXXX

Remove unnecessary genesis state logging in x/feegrant simulations. feegrant module simulation is generating huge [logs](https://pastebin.com/pV5gk0mV).

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---

### Author Checklist

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please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR Targeting](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building modules](https://github.com/cosmos/cosmos-sdk/blob/master/docs/building-modules)
- [ ] included the necessary unit and integration [tests](https://github.com/cosmos/cosmos-sdk/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

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I have...

- [ ] confirmed the correct [type prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json) in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed 
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

CHANGELOG.md

@@ -121,6 +121,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
 * (types) [\#10021](https://github.com/cosmos/cosmos-sdk/pull/10021) Speedup coins.AmountOf(), by removing many intermittent regex calls.
 * (rosetta) [\#10001](https://github.com/cosmos/cosmos-sdk/issues/10001) Add documentation for rosetta-cli dockerfile and rename folder for the rosetta-ci dockerfile
 * [\#9699](https://github.com/cosmos/cosmos-sdk/pull/9699) Add `:`, `.`, `-`, and `_` as allowed characters in the default denom regular expression.
+* [\#10262](https://github.com/cosmos/cosmos-sdk/pull/10262) Remove unnecessary logging in `x/feegrant` simulation.
 
 ### Bug Fixes
 * [#10180](https://github.com/cosmos/cosmos-sdk/issues/10180) Documentation: make references to Cosmos SDK consistent

x/feegrant/simulation/genesis.go

@@ -1,7 +1,6 @@
 package simulation
 
 import (
-	"fmt"
 	"math/rand"
 	"time"
 
@@ -74,6 +73,5 @@ func RandomizedGenState(simState *module.SimulationState) {
 		panic(err)
 	}
 
-	fmt.Printf("Selected randomly generated %s parameters:\n%s\n", feegrant.ModuleName, bz)
 	simState.GenState[feegrant.ModuleName] = bz
 }