bonsai - drop unrelated pypi aud module

Turned out `aud` module we had in our makefile had nothing to do with Blender built-in `uad` module 🫣
So no need to install anything from PyPI since this module is generally available in Blender

.github/workflows/ci.yml

@@ -53,7 +53,6 @@ jobs:
           python -m pip install --upgrade pip
           pip install xmlschema xsdata numpy lxml pytest isodate lark networkx tabulate python-dateutil shapely
           pip install src/bcf --no-deps
-          pip install git+https://github.com/zdhoward/aud
           pip install pytest-xdist==3.8.0
 
       - name: Install C++ dependencies

src/bonsai/Makefile

@@ -145,9 +145,6 @@ endif
 	cd ../ifc5d && make dist && mv dist/*.whl ../bonsai/build/wheels/
 	cd ../ifccityjson && make dist && mv dist/*.whl ../bonsai/build/wheels/
 	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download GitPython --dest=./wheels
-	# Provides audio playback for costing
-	# This is a REALLY IMPORTANT feature
-	cd build && . env/$(VENV_ACTIVATE) && $(PIP) wheel git+https://github.com/zdhoward/aud --wheel-dir=./wheels
 	# IfcOpenShell dependency - support for new typing features
 	cd build && . env/$(VENV_ACTIVATE) && $(PIP) download typing_extensions --dest=./wheels
 	# Required by IfcCSV

src/bonsai/bonsai/tool/cost.py

@@ -23,6 +23,7 @@ from collections.abc import Generator
 from pathlib import Path
 from typing import TYPE_CHECKING, Any, Literal, Optional, Union, assert_never
 
+import aud
 import bpy
 import ifcopenshell.api
 import ifcopenshell.api.cost
@@ -149,11 +150,6 @@ class Cost(bonsai.core.tool.Cost):
     @classmethod
     def play_chaching_sound(cls) -> None:
         # TODO: make pitch higher as costs rise
-        try:
-            import aud
-        except ImportError:
-            return  # ah well
-
         device = aud.Device()
         # chaching.mp3 is by Lucish_ CC-BY-3.0 https://freesound.org/people/Lucish_/sounds/554841/
         filepath = tool.Blender.get_data_dir_path("chaching.mp3").__str__()