Revert "Add an additional Cygwin package repo with patched ninja"
Revert "Add an additional Cygwin package repo with patched ninja"

This reverts commit 92c2bb75195c054dcdeae09f7d42393856a91748.

This is no longer needed, as a patched ninja is now available from the
standard Cygwin package repository, and prevents me from accidentally
breaking CI when changing things in my personal package repository.

jpakkane/meson,MathieuDuponchelle/meson,QuLogic/meson,QuLogic/meson,jpakkane/meson,pexip/meson,ernestask/meson,ernestask/meson,becm/meson,mesonbuild/meson,trhd/meson,becm/meson,pexip/meson,trhd/meson,pexip/meson,MathieuDuponchelle/meson,jpakkane/meson,becm/meson,jpakkane/meson,jpakkane/meson,MathieuDuponchelle/meson,ernestask/meson,MathieuDuponchelle/meson,thiblahute/meson,QuLogic/meson,pexip/meson,trhd/meson,MathieuDuponchelle/meson,QuLogic/meson,pexip/meson,ernestask/meson,jeandet/meson,MathieuDuponchelle/meson,mesonbuild/meson,thiblahute/meson,mesonbuild/meson,MathieuDuponchelle/meson,trhd/meson,becm/meson,thiblahute/meson,jeandet/meson,jeandet/meson,becm/meson,mesonbuild/meson,jeandet/meson,pexip/meson,trhd/meson,MathieuDuponchelle/meson,jeandet/meson,jpakkane/meson,thiblahute/meson,ernestask/meson,jeandet/meson,thiblahute/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,QuLogic/meson,QuLogic/meson,trhd/meson,mesonbuild/meson,QuLogic/meson,jpakkane/meson,thiblahute/meson,thiblahute/meson,becm/meson,thiblahute/meson,jeandet/meson,trhd/meson,jpakkane/meson,trhd/meson,thiblahute/meson,jeandet/meson,pexip/meson,mesonbuild/meson,mesonbuild/meson,becm/meson,ernestask/meson,ernestask/meson,jeandet/meson,mesonbuild/meson,MathieuDuponchelle/meson,trhd/meson,pexip/meson,becm/meson,ernestask/meson,jpakkane/meson,QuLogic/meson,becm/meson,pexip/meson,ernestask/meson,QuLogic/meson,becm/meson