docs: wipe sept from the docs

docs/building.md

@@ -9,7 +9,7 @@ Building Atmosphère is a very straightforward process that relies almost exclus
 + [PyCryptodome](https://pypi.org/project/pycryptodome) (optional)
 
 ## Instructions
-1. Follow the guide located [here](https://devkitpro.org/wiki/Getting_Started) to install and configure all the tools necessary for the build process. 
+1. Follow the guide located [here](https://devkitpro.org/wiki/Getting_Started) to install and configure all the tools necessary for the build process.
 
 2. Install the following packages via (dkp-)pacman:
     + `switch-dev`
@@ -21,12 +21,4 @@ Building Atmosphère is a very straightforward process that relies almost exclus
 3. Install the following library via python's package manager `pip`, required by [exosphere](components/exosphere.md):
     + `lz4`
 
-4. (Optional) In order to build [sept](components/sept.md) the pycryptodome PyPi package is required, which can be installed by running `pip install pycryptodome` under the installed Python environment of your choice or by installing the complete zip package to support the `make dist` recipe. This is an optional step included for advanced users who have the ability to provide the necessary encryption/signing keys themselves.
-
-5. It is, instead, possible to build [sept](components/sept.md) by providing previously encrypted/signed binaries distributed by official Atmosphère release packages. In order to do so, export the following variables in your current environment:
-    + `SEPT_00_ENC_PATH` (must point to the `sept-secondary_00.enc` file)
-    + `SEPT_01_ENC_PATH` (must point to the `sept-secondary_01.enc` file)
-    + `SEPT_DEV_00_ENC_PATH` (must point to the `sept-secondary_dev_00.enc` file)
-    + `SEPT_DEV_01_ENC_PATH` (must point to the `sept-secondary_dev_01.enc` file)
-
-6. Finally, clone the Atmosphère repository and run `make` under its root directory.
+4. Finally, clone the Atmosphère repository and run `make` under its root directory.