gh-41080: remove obsolete sagemath_* spkgs, adjust build
    
Fixes #41065 along the way

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [ ] The title is concise and informative.
- [ ] The description explains in detail what this PR is about.
- [ ] I have linked a relevant issue or discussion.
- [ ] I have created tests covering the changes.
- [ ] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies

#40801 - removing obsolete magic comments
    
URL: #41080
Reported by: Dima Pasechnik
Reviewer(s): David Coudert, Dima Pasechnik, Tobias Diez

Author: Release Manager

.github/workflows/dist.yml

@@ -247,25 +247,6 @@ jobs:
               (cd unpacked && tar xfz - ) < $sdist
           done
 
-      - name: sagemath-bliss
-        run: |
-          "${{ steps.python.outputs.python-path }}" -m cibuildwheel unpacked/sagemath*bliss*
-
-      - name: sagemath-coxeter3
-        run: |
-          "${{ steps.python.outputs.python-path }}" -m cibuildwheel unpacked/sagemath*coxeter3*
-
-      - name: sagemath-mcqd
-        run: |
-          "${{ steps.python.outputs.python-path }}" -m cibuildwheel unpacked/sagemath*mcqd*
-
-      - name: sagemath-tdlib
-        run: |
-          case "${{ matrix.arch }}" in
-              i686) ;;  # broken - boost-related
-              *) "${{ steps.python.outputs.python-path }}" -m cibuildwheel unpacked/sagemath*tdlib*
-          esac
-
       - uses: actions/upload-artifact@v4
         with:
           name: ${{ matrix.os }}-${{ matrix.build }}-${{ matrix.arch }}-wheels

.gitignore

@@ -142,32 +142,14 @@ build/pkgs/wheel/version_requirements.txt
 /pkgs/*/.venv*
 
 /pkgs/sagemath-objects/setup.cfg
-/pkgs/sagemath-bliss/setup.cfg
-/pkgs/sagemath-coxeter3/setup.cfg
-/pkgs/sagemath-mcqd/setup.cfg
-/pkgs/sagemath-meataxe/setup.cfg
-/pkgs/sagemath-sirocco/setup.cfg
-/pkgs/sagemath-tdlib/setup.cfg
 /pkgs/sagemath-categories/setup.cfg
 /pkgs/sagemath-environment/setup.cfg
 /pkgs/sagemath-repl/setup.cfg
 /pkgs/sagemath-objects/pyproject.toml
-/pkgs/sagemath-bliss/pyproject.toml
-/pkgs/sagemath-coxeter3/pyproject.toml
-/pkgs/sagemath-mcqd/pyproject.toml
-/pkgs/sagemath-meataxe/pyproject.toml
-/pkgs/sagemath-sirocco/pyproject.toml
-/pkgs/sagemath-tdlib/pyproject.toml
 /pkgs/sagemath-categories/pyproject.toml
 /pkgs/sagemath-environment/pyproject.toml
 /pkgs/sagemath-repl/pyproject.toml
 /pkgs/sagemath-objects/requirements*.txt
-/pkgs/sagemath-bliss/requirements*.txt
-/pkgs/sagemath-coxeter3/requirements*.txt
-/pkgs/sagemath-mcqd/requirements*.txt
-/pkgs/sagemath-meataxe/requirements*.txt
-/pkgs/sagemath-sirocco/requirements*.txt
-/pkgs/sagemath-tdlib/requirements*.txt
 /pkgs/sagemath-categories/requirements*.txt
 /pkgs/sagemath-environment/requirements*.txt
 /pkgs/sagemath-repl/requirements*.txt

build/make/Makefile.in

@@ -130,15 +130,6 @@ PIP_PACKAGES = @SAGE_PIP_PACKAGES@
 # Packages that use the 'script' package build rules
 SCRIPT_PACKAGES = @SAGE_SCRIPT_PACKAGES@
 
-# Packages for which we build wheels for PyPI
-PYPI_WHEEL_PACKAGES = \
-	sagemath_bliss 				\
-	sagemath_mcqd 				\
-	sagemath_tdlib				\
-	sagemath_coxeter3 			\
-	sagemath_sirocco			\
-	sagemath_meataxe
-
 # sage_docbuild is here, not in PYPI_WHEEL_PACKAGES, because it depends on sagelib
 WHEEL_PACKAGES = $(PYPI_WHEEL_PACKAGES)		\
 	sagelib					\