Drop windows/installer_legacy from git
While it's possible that someone hacks together e.g. gtk2-client build for windows using msys1 in S3_0, all the requirements in master have gone so far above msys1's level that certainly nobody ever has any use for installer_legacy there. Drop it.
While it's possible that someone hacks together e.g. gtk2-client build for windows using msys1 in S3_0, all the requirements in master have gone so far above msys1's level that certainly nobody ever has any use for installer_legacy there. Drop it.