Remove misleading doc for REQ_SKIP_TLS_VERIFY

The Requests library support is not relevant for the user because the environment variable is still supported by src/helpers.py (commit f365d9b)

README.md

@@ -81,7 +81,7 @@ If the filename ends with `.url` suffix, the content will be processed as a URL
 | `SCRIPT`                   | Absolute path to a script to execute after a configmap got reloaded. It runs before calls to `REQ_URI`. If the file is not executable it will be passed to `sh`. Otherwise it's executed as is. [Shebangs](https://en.wikipedia.org/wiki/Shebang_(Unix)) known to work are `#!/bin/sh` and `#!/usr/bin/env python`                  | false    | -                                         | string  |
 | `ERROR_THROTTLE_SLEEP`     | How many seconds to wait before watching resources again when an error occurs                                                                                                                                                                                                                                                       | false    | `5`                                       | integer |
 | `SKIP_TLS_VERIFY`          | Set to `true` to skip tls verification for kube api calls                                                                                                                                                                                                                                                                           | false    | -                                         | boolean |
-| `REQ_SKIP_TLS_VERIFY`      | Set to `true` to skip tls verification for all HTTP requests (except the Kube API server, which are controlled by `SKIP_TLS_VERIFY`). Note that the latest 'requests' library no longer offer a way to disable this via env vars; however a custom truststore can be set via REQUESTS_CA_BUNDLE.                                     | false    | -                                         | boolean |
+| `REQ_SKIP_TLS_VERIFY`      | Set to `true` to skip tls verification for all HTTP requests (except the Kube API server, which are controlled by `SKIP_TLS_VERIFY`).                                      | false    | -                                         | boolean |
 | `UNIQUE_FILENAMES`         | Set to true to produce unique filenames where duplicate data keys exist between ConfigMaps and/or Secrets within the same or multiple Namespaces.                                                                                                                                                                                   | false    | `false`                                   | boolean |
 | `DEFAULT_FILE_MODE`        | The default file system permission for every file. Use three digits (e.g. '500', '440', ...)                                                                                                                                                                                                                                        | false    | -                                         | string  |
 | `KUBECONFIG`               | if this is given and points to a file or `~/.kube/config` is mounted k8s config will be loaded from this file, otherwise "incluster" k8s configuration is tried.                                                                                                                                                                    | false    | -                                         | string  |