Removed old directory structure

src/backend/pyproject.toml

@@ -1,10 +0,0 @@
-[tool.isort]
-force_grid_wrap = 0
-include_trailing_comma = true
-line_length = 88
-multi_line_output = 3
-use_parentheses = true
-# NOTE: the known_third_party setting is managed by
-# seed-isort-config and should not be modified directly.
-# Any changes made to this setting will be overwritten.
-known_third_party = ["PIL", "bs4", "requests"]