drop separate non-unity config+build

.github/workflows/http3-linux.yml

@@ -570,30 +570,3 @@ jobs:
           else
             make -C bld V=1 examples
           fi
-
-      - name: 'configure non-unity'
-        env:
-          MATRIX_CONFIGURE: '${{ matrix.build.configure }}'
-          MATRIX_GENERATE: '${{ matrix.build.generate }}'
-          MATRIX_PKG_CONFIG_PATH: '${{ matrix.build.PKG_CONFIG_PATH }}'
-        run: |
-          rm -rf bld
-          [ -n "${MATRIX_PKG_CONFIG_PATH}" ] && export PKG_CONFIG_PATH="${MATRIX_PKG_CONFIG_PATH}"
-          if [ "${MATRIX_BUILD}" = 'cmake' ]; then
-            cmake -B bld -G Ninja \
-              -DCMAKE_C_COMPILER_TARGET="$(uname -m)-pc-linux-gnu" -DBUILD_STATIC_LIBS=ON \
-              -DCURL_WERROR=ON \
-              ${MATRIX_GENERATE}
-          else
-            mkdir bld && cd bld && ../configure --enable-warnings --enable-werror \
-              --disable-dependency-tracking \
-              ${MATRIX_CONFIGURE}
-          fi
-
-      - name: 'build non-unity'
-        run: |
-          if [ "${MATRIX_BUILD}" = 'cmake' ]; then
-            cmake --build bld --verbose
-          else
-            make -C bld V=1
-          fi