Update instructions

Author: pamelafox

.github/copilot-instructions.md

@@ -39,7 +39,6 @@ When adding new azd environment variables, update:
 
 1. infra/main.parameters.json : Add the new parameter with a Bicep-friendly variable name and map to the new environment variable
 1. infra/main.bicep: Add the new Bicep parameter at the top, and add it to the `appEnvVariables` object
-1. azure.yaml: Add the new environment variable under pipeline config section
 1. .azdo/pipelines/azure-dev.yml: Add the new environment variable under `env` section
 1. .github/workflows/azure-dev.yml: Add the new environment variable under `env` section
 

CONTRIBUTING.md

@@ -141,7 +141,6 @@ When adding new azd environment variables, please remember to update:
 
 1. [main.parameters.json](./infra/main.parameters.json)
 1. [appEnvVariables in main.bicep](./infra/main.bicep)
-1. App Service's [azure.yaml](./azure.yaml)
 1. [ADO pipeline](.azdo/pipelines/azure-dev.yml).
 1. [Github workflows](.github/workflows/azure-dev.yml)