deb: Remove any source changes or buildinfo before running binary build

Avoids possible problems with uploads later

refs https://git.netways.de/packaging/packaging/-/issues/11
refs https://git.netways.de/nps/tools/repotool/-/issues/3

icinga-build-deb-binary

@@ -77,6 +77,8 @@ echo "[ Building binary package ]"
 (
   set -ex
   cd "${BUILDDIR}/${ICINGA_BUILD_PROJECT}"
+  # Remove source build metadata before binary build
+  rm -rf ../*.changes ../*.buildinfo
   dpkg-buildpackage -rfakeroot -uc -us $binopts
 )