Most of MANIFEST.in is obsolete, get rid of it (#2646)

MANIFEST.in

@@ -1,12 +1,7 @@
-include codespell_lib/__init__.py
-recursive-include codespell_lib *.py
-include codespell_lib/data/dictionary*.txt
-include codespell_lib/data/linux-kernel.exclude
-include COPYING
 exclude *.yml *.yaml
 exclude .coveragerc
 exclude .git-blame-ignore-revs
-exclude example example/* snap snap/* tools tools/*
+exclude example example/* snap snap/*
 exclude Makefile
 exclude codespell.1.include
 exclude pyproject-codespell.precommit-toml

Makefile

@@ -2,11 +2,11 @@ SORT_ARGS := -f -b
 
 DICTIONARIES := codespell_lib/data/dictionary*.txt
 
-PHONY := all check check-dictionaries sort-dictionaries trim-dictionaries check-dictionary sort-dictionary trim-dictionary check-manifest check-dist flake8 pytest pypi clean
+PHONY := all check check-dictionaries sort-dictionaries trim-dictionaries check-dictionary sort-dictionary trim-dictionary check-dist flake8 pytest pypi clean
 
 all: check-dictionaries codespell.1
 
-check: check-dictionaries check-manifest check-dist flake8 pytest
+check: check-dictionaries check-dist flake8 pytest
 
 check-dictionary: check-dictionaries
 sort-dictionary: sort-dictionaries
@@ -44,9 +44,6 @@ trim-dictionaries:
 		sed -E -i.bak -e 's/^[[:space:]]+//; s/[[:space:]]+$$//; /^$$/d' $$dictionary && rm $$dictionary.bak; \
 	done
 
-check-manifest:
-	check-manifest --no-build-isolation
-
 check-dist:
 	$(eval TMP := $(shell mktemp -d))
 	python -m build -o $(TMP)

pyproject.toml

@@ -32,7 +32,7 @@ dynamic = ["version"]
 
 [project.optional-dependencies]
 dev = [
-    "check-manifest",
+    "build",
     "flake8",
     "flake8-pyproject",
     "pytest",
@@ -91,9 +91,6 @@ expand-star-imports = true
 skip = "B101,B404,B603"
 recursive = true
 
-[tool.check-manifest]
-ignore = ["codespell_lib/_version.py"]
-
 # TODO: reintegrate codespell configuration after updating test cases
 #[tool.codespell]
 #builtin = ["clear","rare","informal","usage","code","names"]