refactor: Revert middlewares to antehandlers (part 1/2: baseapp) (#11979)

## Description

We decided to remove middlewares, and revert to antehandlers (exactly like in v045) for this release. A better middleware solution will be implemented after v046.

ref: #11955 

Because this refactor is big, so I decided to cut it into two. This PR is part 1 of 2:
- part 1: Revert baseapp and middlewares to v0.45.4
- part 2: Add posthandler, tips, priority

---
 Suggestion for reviewers:

This PR might still be hard to review though. I think it's easier to actually review the diff between v0.45.4 and this PR:
- `git difftool -d v0.45.4..am/revert-045-baseapp baseapp`
  - most important parts to review: runTx, runMsgs
- `git difftool -d v0.45.4..am/revert-045-baseapp x/auth/ante`
  - only cosmetic changes
- `git difftool -d v0.45.4..am/revert-045-baseapp simapp`



---

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- [ ] 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
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- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
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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 
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- [ ] manually tested (if applicable)

types/handler.go

@@ -5,11 +5,9 @@ type Handler func(ctx Context, msg Msg) (*Result, error)
 
 // AnteHandler authenticates transactions, before their internal messages are handled.
 // If newCtx.IsZero(), ctx is used instead.
-// DEPRECATED: use middleware instead
 type AnteHandler func(ctx Context, tx Tx, simulate bool) (newCtx Context, err error)
 
 // AnteDecorator wraps the next AnteHandler to perform custom pre- and post-processing.
-// DEPRECATED: use middleware instead
 type AnteDecorator interface {
 	AnteHandle(ctx Context, tx Tx, simulate bool, next AnteHandler) (newCtx Context, err error)
 }
@@ -28,7 +26,6 @@ type AnteDecorator interface {
 // transactions to be processed with an infinite gasmeter and open a DOS attack vector.
 // Use `ante.SetUpContextDecorator` or a custom Decorator with similar functionality.
 // Returns nil when no AnteDecorator are supplied.
-// DEPRECATED: use middleware instead
 func ChainAnteDecorators(chain ...AnteDecorator) AnteHandler {
 	if len(chain) == 0 {
 		return nil