[libxml2] Revert "CI job for MingW64/Autotools"

[Nick Wellnhofer <nwellnhof src gnome org>]

commit f9fcb2c47a680f4756b75286e361cc4726e47fa7
Author: Nick Wellnhofer <wellnhofer aevum de>
Date:   Sun Sep 4 04:47:48 2022 +0200

    Revert "CI job for MingW64/Autotools"
    
    This reverts commit 6bfebf4d5886bd5f2a3979ceedc27ebd6c3c5009.

 .gitlab-ci.yml | 43 -------------------------------------------
 1 file changed, 43 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 85d09d8a..b869b170 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -70,49 +70,6 @@ clang:msan:
     CC: clang
     CFLAGS: "-O2 -g -fno-omit-frame-pointer -fsanitize=memory -Wno-error=cast-align"
 
-.mingw:
-  tags:
-    - win32-ps
-  variables:
-    BASE_CONFIG: "--with-ftp --with-legacy --with-xptr-locs"
-  before_script:
-    - "[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12"
-    - $Env:Path="C:\msys64\$Env:MINGW_PATH\bin;C:\msys64\usr\bin;$Env:Path"
-    - pacman --noconfirm -Syu
-    - pacman --noconfirm -S
-        $Env:MINGW_PACKAGE_PREFIX-autoconf
-        $Env:MINGW_PACKAGE_PREFIX-automake
-        $Env:MINGW_PACKAGE_PREFIX-libtool
-        $Env:MINGW_PACKAGE_PREFIX-pkg-config
-        $Env:MINGW_PACKAGE_PREFIX-make
-        $Env:MINGW_PACKAGE_PREFIX-libiconv
-        $Env:MINGW_PACKAGE_PREFIX-python
-        $Env:MINGW_PACKAGE_PREFIX-python2
-        $Env:MINGW_PACKAGE_PREFIX-xz
-        $Env:MINGW_PACKAGE_PREFIX-zlib
-    - if (-not (Test-Path 7za.exe)) {
-        Invoke-WebRequest -Uri https://www.7-zip.org/a/7z1900-extra.7z -OutFile 7z1900-extra.7z ;
-        cmake -E tar xf 7z1900-extra.7z 7za.exe
-      }
-    - if (-not (Test-Path libxml2-build/xmlconf)) {
-        Invoke-WebRequest -Uri https://www.w3.org/XML/Test/xmlts20080827.tar.gz -OutFile 
xmlts20080827.tar.gz ;
-        .\7za.exe x xmlts20080827.tar.gz -olibxml2-build
-      }
-  script:
-    - |
-      rm -rf build
-      mkdir build
-      cd build
-      ln -s /tests/xmlconf
-      sh ../autogen.sh $BASE_CONFIG $CONFIG
-      make -j$(nproc) V=1 CFLAGS="$CFLAGS -Werror"
-      make CFLAGS="$CFLAGS -Werror" check
-
-mingw:
-  extends: .mingw
-  variables:
-    CFLAGS: "-O2"
-
 .cmake:linux:
   image: registry.gitlab.gnome.org/gnome/libxml2
   script: