[ci/msys2] Remove workaround for meson preferring system libraries

The workaround was added in #4354 to avoid the linker using system harfbuzz
over the just built one.

This is/was most likely https://github.com/mesonbuild/meson/pull/12861
which hopefully should be merged upstream for meson 1.8.

In MSYS2 we have backported this fix for over a year since
https://github.com/msys2/MINGW-packages/pull/20058 so using the meson
package provided by MSYS2 (as is the case here) should avoid the problem
already.

.github/workflows/msys2-ci.yml

@@ -50,9 +50,6 @@ jobs:
           mingw-w64-${{ matrix.MSYS2_ARCH }}-pkgconf
           mingw-w64-${{ matrix.MSYS2_ARCH }}-python
           mingw-w64-${{ matrix.MSYS2_ARCH }}-python-pip
-    - name: Remove installed HarfBuzz DLLs
-      run: |
-        rm -f -v "$MSYSTEM_PREFIX"/bin/libharfbuzz-*.dll
     - name: Install Python Dependencies
       run: |
         pip3 install -r .ci/requirements-fonttools.txt --require-hashes