Remove debug build for now (python#17917)

It's started failing on master due to agent changes and also it never
tested debug builds in the first place, see issues linked

https://github.com/python/mypy/actions/runs/11283075094/job/31381791947

.github/workflows/test.yml

@@ -70,14 +70,14 @@ jobs:
           toxenv: py
           tox_extra_args: "-n 4"
           test_mypyc: true
-
         - name: Test suite with py313-ubuntu, mypyc-compiled
           python: '3.13'
           arch: x64
           os: ubuntu-latest
           toxenv: py
           tox_extra_args: "-n 4"
           test_mypyc: true
+
         # - name: Test suite with py314-dev-ubuntu
         #   python: '3.14-dev'
         #   arch: x64
@@ -94,13 +94,16 @@ jobs:
           os: macos-13
           toxenv: py
           tox_extra_args: "-n 3 mypyc/test/test_run.py mypyc/test/test_external.py"
-        - name: mypyc runtime tests with py38-debug-build-ubuntu
-          python: '3.8.17'
-          arch: x64
-          os: ubuntu-latest
-          toxenv: py
-          tox_extra_args: "-n 4 mypyc/test/test_run.py mypyc/test/test_external.py"
-          debug_build: true
+        # This is broken. See
+        # - https://github.com/python/mypy/issues/17819
+        # - https://github.com/python/mypy/pull/17822
+        # - name: mypyc runtime tests with py38-debug-build-ubuntu
+        #   python: '3.8.17'
+        #   arch: x64
+        #   os: ubuntu-latest
+        #   toxenv: py
+        #   tox_extra_args: "-n 4 mypyc/test/test_run.py mypyc/test/test_external.py"
+        #   debug_build: true
 
         - name: Type check our own code (py38-ubuntu)
           python: '3.8'
@@ -148,17 +151,17 @@ jobs:
         ./misc/build-debug-python.sh $PYTHONVERSION $PYTHONDIR $VENV
         # TODO: does this do anything? env vars aren't passed to the next step right
         source $VENV/bin/activate
-    - name: Latest Dev build
+    - name: Latest dev build
       if: ${{ endsWith(matrix.python, '-dev') }}
       run: |
-          sudo apt-get update
-          sudo apt-get install -y --no-install-recommends \
-            build-essential gdb lcov libbz2-dev libffi-dev libgdbm-dev liblzma-dev libncurses5-dev \
-            libreadline6-dev libsqlite3-dev libssl-dev lzma lzma-dev tk-dev uuid-dev zlib1g-dev
           git clone --depth 1 https://github.com/python/cpython.git /tmp/cpython --branch $( echo ${{ matrix.python }} | sed 's/-dev//' )
           cd /tmp/cpython
           echo git rev-parse HEAD; git rev-parse HEAD
           git show --no-patch
+          sudo apt-get update
+          sudo apt-get install -y --no-install-recommends \
+            build-essential gdb lcov libbz2-dev libffi-dev libgdbm-dev liblzma-dev libncurses5-dev \
+            libreadline6-dev libsqlite3-dev libssl-dev lzma lzma-dev tk-dev uuid-dev zlib1g-dev
           ./configure --prefix=/opt/pythondev
           make -j$(nproc)
           sudo make install
@@ -190,7 +193,7 @@ jobs:
 
     - name: Setup tox environment
       run: |
-        tox run -e ${{ matrix.toxenv }} --notes
+        tox run -e ${{ matrix.toxenv }} --notest
     - name: Test
       run: tox run -e ${{ matrix.toxenv }} --skip-pkg-install -- ${{ matrix.tox_extra_args }}
       continue-on-error: ${{ matrix.allow_failure == 'true' }}