Revert #9511

[gotjosh]

This reverts #9511 as it panics ingesters.

The details are:

│ panic: runtime error: invalid memory address or nil pointer dereference                                                                                                                      │
│     panic: runtime error: invalid memory address or nil pointer dereference                                                                                                                  │
│ [signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x13b2350]                                                                                                                     │

     $GOROOT/src/runtime/panic.go:785 +0x124                                                                                                                                                  │
│ github.com/twmb/franz-go/pkg/kgo/internal/pool.(*BucketedPool[...]).Get(0x0?, 0x0?)

[grafanabot]

The backport to r311 failed:

The process '/usr/bin/git' failed with exit code 1

To backport manually, run these commands in your terminal:

# Fetch latest updates from GitHub
git fetch
# Create a new branch
git switch --create backport-9566-to-r311 origin/r311
# Cherry-pick the merged commit of this pull request and resolve the conflicts
git cherry-pick -x ab3e627b1da134f33c06dd09ee4402a2eaad68f1
# Push it to GitHub
git push --set-upstream origin backport-9566-to-r311
git switch main
# Remove the local backport branch
git branch -D backport-9566-to-r311

Then, create a pull request where the base branch is r311 and the compare/head branch is backport-9566-to-r311.