Remove locust from requirements-dev.txt (#2539)

* Explicitly activate the environment

* Remove locust from requirements-dev.txt

* Newline EOF

Author: pamelafox

docs/productionizing.md

@@ -100,13 +100,7 @@ We recommend running a loadtest for your expected number of users.
 You can use the [locust tool](https://docs.locust.io/) with the `locustfile.py` in this sample
 or set up a loadtest with Azure Load Testing.
 
-To use locust, first install the dev requirements that includes locust:
-
-```shell
-python -m pip install -r requirements-dev.txt
-```
-
-Or manually install locust:
+First make sure you have the locust package installed in your Python environment:
 
 ```shell
 python -m pip install locust

requirements-dev.txt

@@ -10,6 +10,5 @@ pytest-cov
 pytest-playwright
 pytest-snapshot
 pre-commit
-locust
 pip-tools
-mypy==1.14.1
+mypy==1.14.1