Update README.rst

Author: ladyada

README.rst

@@ -50,32 +50,6 @@ Contributions are welcome! Please read our `Code of Conduct
 <https://github.com/adafruit/Adafruit_CircuitPython_Display_Text/blob/master/CODE_OF_CONDUCT.md>`_
 before contributing to help this project stay welcoming.
 
-Building locally
-================
-
-Zip release files
------------------
-
-To build this library locally you'll need to install the
-`circuitpython-build-tools <https://github.com/adafruit/circuitpython-build-tools>`_ package.
-
-.. code-block:: shell
-
-    python3 -m venv .env
-    source .env/bin/activate
-    pip install circuitpython-build-tools
-
-Once installed, make sure you are in the virtual environment:
-
-.. code-block:: shell
-
-    source .env/bin/activate
-
-Then run the build:
-
-.. code-block:: shell
-
-    circuitpython-build-bundles --filename_prefix adafruit-circuitpython-display_text --library_location .
 
 Sphinx documentation
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