refactor: Mark tips as beta (#12089)

## Description

Following our SDK call, we decided to mark the Tip decorator as beta for now, and not include it in the default posthandler chain.

This PR also fixes events not all included in the response in SimulateTx.



---

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- [ ] 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
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x/auth/posthandler/post.go

@@ -2,26 +2,14 @@ package posthandler
 
 import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
-	sdkerrors "github.com/cosmos/cosmos-sdk/types/errors"
-	"github.com/cosmos/cosmos-sdk/x/auth/types"
 )
 
 // HandlerOptions are the options required for constructing a default SDK PostHandler.
-type HandlerOptions struct {
-	BankKeeper types.BankKeeper
-}
+type HandlerOptions struct{}
 
-// NewAnteHandler returns an AnteHandler that checks and increments sequence
-// numbers, checks signatures & account numbers, and deducts fees from the first
-// signer.
+// NewPostHandler returns an empty posthandler chain.
 func NewPostHandler(options HandlerOptions) (sdk.AnteHandler, error) {
-	if options.BankKeeper == nil {
-		return nil, sdkerrors.Wrap(sdkerrors.ErrLogic, "bank keeper is required for posthandler")
-	}
-
-	postDecorators := []sdk.AnteDecorator{
-		NewTipDecorator(options.BankKeeper),
-	}
+	postDecorators := []sdk.AnteDecorator{}
 
 	return sdk.ChainAnteDecorators(postDecorators...), nil
 }

x/auth/posthandler/tips.go

@@ -16,6 +16,8 @@ type tipDecorator struct {
 
 // NewTipDecorator returns a new decorator for handling transactions with
 // tips.
+//
+// IMPORTANT: This decorator is still in beta, please use it at your own risk.
 func NewTipDecorator(bankKeeper types.BankKeeper) sdk.AnteDecorator {
 	return tipDecorator{
 		bankKeeper: bankKeeper,