No regular CSV file upload. Only "annotated"

__Steps to reproduce:__
List the minimal actions needed to reproduce the behavior.

1. ...
2. ...
3. ...

__Expected behavior:__
Describe what you expected to happen.

__Actual behavior:__
Describe What actually happened.

__Environment info:__

* System info: Run `uname -srm` and copy the output here
* InfluxDB version: Run `influxd version` and copy the output here
* Other relevant environment details: Container runtime, disk info, etc

__Config:__
Copy any non-default config values here or attach the full config as a gist or file.

__Logs:__
Include snippet of errors in log.

__Performance:__
Generate profiles with the following commands for bugs related to performance, locking, out of memory (OOM), etc.

```sh
# Commands should be run when the bug is actively happening.
# Note: This command will run for ~30 seconds.
curl -o profiles.tar.gz "http://localhost:8086/debug/pprof/all?cpu=30s"
iostat -xd 1 30 > iostat.txt
# Attach the `profiles.tar.gz` and `iostat.txt` output files.
```

The issue names no files, tests, or entry points and provides no reproduction details. Start by confirming which CSV formats are currently accepted and how a regular CSV is expected to be uploaded. Done means the expected regular CSV upload works and has coverage for the reported behavior.

Written by the indexing model from the issue text.