(travis) Cut down the amount of APT repos during updates

Sometimes things outside of ubuntu's control go down, and the entire smoke
will crash and burn for reasons completely unrelated to what we are doing

diff --git a/maint/travis-ci_scripts/10_before_install.bash b/maint/travis-ci_scripts/10_before_install.bash
index 356c17c..1b03580 100755 (executable)
--- a/maint/travis-ci_scripts/10_before_install.bash
+++ b/maint/travis-ci_scripts/10_before_install.bash
@@ -60,6 +60,9 @@ else
   sudo bash -c 'echo -e "firebird2.5-super\tshared/firebird/enabled\tboolean\ttrue" | debconf-set-selections'
   sudo bash -c 'echo -e "firebird2.5-super\tshared/firebird/sysdba_password/new_password\tpassword\t123" | debconf-set-selections'
 
+  # these APT sources do not mean anything to us anyway
+  sudo rm -rf /etc/apt/sources.list.d/*
+
   run_or_err "Updating APT sources" "sudo apt-get update"
   apt_install $common_packages libmysqlclient-dev memcached firebird2.5-super firebird2.5-dev unixodbc-dev expect