Windows: Use godot-mono-builds scripts, remove Wine dependency

Streamlines the build process as done for Linux and macOS in previous commits,
and as was done for mobile and web platforms from the start. We're now fully
in sync with `godot-mono-builds`.

This also removes the need to hack around cross-compilation issues using Wine,
which also seemed no longer to work on Fedora 34 anyway.

Dockerfile.windows

@@ -5,29 +5,16 @@ ARG mono_version
 
 RUN if [ -z "${mono_version}" ]; then echo -e "\n\nargument mono-version is mandatory!\n\n"; exit 1; fi && \
     dnf -y install --setopt=install_weak_deps=False \
-      mingw32-gcc mingw32-gcc-c++ mingw32-winpthreads-static mingw64-gcc mingw64-gcc-c++ mingw64-winpthreads-static wine && \
+      mingw32-gcc mingw32-gcc-c++ mingw32-winpthreads-static mingw64-gcc mingw64-gcc-c++ mingw64-winpthreads-static && \
     cp -a /root/files/${mono_version} /root && \
-    cd /root/${mono_version} && \
-    patch -p1 < /root/files/patches/wine-mono.patch && \
-    export WINE_BITS=64 && \
-    bash /root/files/mono-build-win32.sh --prefix=/root/dependencies/mono-64 --host=x86_64-w64-mingw32 \
-      --with-profile4_x=yes --with-runtime-preset=net_4_x && \
-    git clean -fdx && \
-    cp /root/dependencies/mono-64/bin/libMonoPosixHelper.dll /root/dependencies/mono-64/bin/MonoPosixHelper.dll && \
-    rm -f /root/dependencies/mono-64/bin/mono /root/dependencies/mono-64/bin/mono-sgen && \
-    ln -s /usr/bin/mono /root/dependencies/mono-64/bin/mono && \
-    ln -s /usr/bin/mono-sgen /root/dependencies/mono-64/bin/mono-sgen && \
-    cp -rvp /etc/mono /root/dependencies/mono-64/etc && \
-    export WINE_BITS=32 && \
-    bash /root/files/mono-build-win32.sh --prefix=/root/dependencies/mono-32 --host=i686-w64-mingw32 \
-      --with-profile4_x=yes --with-runtime-preset=net_4_x && \
+    export MONO_SOURCE_ROOT=/root/${mono_version} && \
+    cd /root/${mono_version}/godot-mono-builds && \
+    python3 windows.py configure -j --target=x86_64 --target=x86 --mxe-prefix=/usr && \
+    python3 windows.py make -j --target=x86_64 --target=x86 --mxe-prefix=/usr && \
+    python3 bcl.py make -j --product=desktop && \
+    python3 bcl.py make -j --product=desktop-win32 && \
+    python3 windows.py copy-bcl --target=x86_64 --target=x86 && \
     cd /root && \
-    rm -rf /root/${mono_version} && \
-    cp /root/dependencies/mono-32/bin/libMonoPosixHelper.dll /root/dependencies/mono-32/bin/MonoPosixHelper.dll && \
-    rm -f /root/dependencies/mono-32/bin/mono /root/dependencies/mono-32/bin/mono-sgen && \
-    ln -s /usr/bin/mono /root/dependencies/mono-32/bin/mono && \
-    ln -s /usr/bin/mono-sgen /root/dependencies/mono-32/bin/mono-sgen && \
-    cp -rvp /etc/mono /root/dependencies/mono-32/etc && \
-    dnf -y remove wine
+    rm -rf /root/${mono_version}
 
 CMD /bin/bash