Please remove this obsolete line

Please remove this line. The replacement macro on obs is %_mingw32_package_header_debug and should be placed before the BuildArch: tag, see https://build.opensuse.org/package/view_file/windows:mingw:win64/mingw64-viking/mingw64-viking.spec?expand=1 line 54

Please move all ...Requires line after the Patch: lines, see https://build.opensuse.org/package/view_file/windows:mingw:win64/mingw64-viking/mingw64-viking.spec?expand=1 for an example

Please add %_mingw32_debug_package after the %description tag to get a debug package

@alanmcgovern, @danimo, @fridrich_strba, @fstrba, @hiberis, @jengelh, @jnweiger, @kalikiana, @lnussel, @mkbosmans, @msmeissn, @pansenmann, @rhabacker: review reminder