travis-ci: Remove hooks for Travis CI (typically used with GitHub)

These will get out of date pretty quickly, so better to remove them now
that GitLab CI is the documented and supported solution.

This was our first public CI system, used because it is cost-free
to Open Source projects and integrated with GitHub.

It has served it's purpose now.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Fri Dec 14 22:04:20 CET 2018 on sn-devel-144

.travis.yml

@@ -1,50 +0,0 @@
-language: c
-dist: trusty
-
-sudo: true
-
-cache: ccache
-
-# Everything except samba and ctdb (long tests)
-env:
-  - TASK=samba-xc
-  - TASK=samba-ctdb
-  - TASK=samba-libs
-  - TASK=samba-libs-py3
-  - TASK=samba-static
-  - TASK=samba-o3
-  - TASK=samba-none-env
-  - TASK=samba-none-env-py3
-  - TASK=samba-nopython
-  - TASK=samba-systemkrb5
-  - TASK=samba-nt4
-  - TASK=samba-nt4-py3
-  - TASK=samba-fileserver
-  - TASK=samba-ad-dc
-  - TASK=samba-ad-dc-py3
-  - TASK=samba-ad-dc-2
-  - TASK=samba-ad-dc-2-py3
-  - TASK=ldb
-  - TASK=tdb
-  - TASK=talloc
-  - TASK=replace
-  - TASK=tevent
-  - TASK=pidl
-
-# Fail everything after the first job fails
-matrix:
-  fast_finish: true
-
-before_install:
- - sudo apt-get update -qq
- - sudo apt-get install --assume-yes acl attr autoconf bind9utils bison build-essential ccache curl debhelper dnsutils docbook-xml docbook-xsl emacs24-nox flex gdb git htop jed krb5-user libacl1-dev libaio-dev libarchive-dev libattr1-dev libblkid-dev libbsd-dev libcap-dev libcups2-dev libgnutls-dev libgpgme11-dev libjansson-dev libjson-perl libldap2-dev liblmdb-dev/trusty-backports libncurses5-dev libpam0g-dev libparse-yapp-perl libpopt-dev libreadline-dev linux-tools-generic lmdb-utils/trusty-backports nettle-dev perl perl-modules pkg-config psmisc python3-crypto python3-dev python3-dnspython python3-gpgme python3-markdown python3-matplotlib python-all-dev python-crypto python-dbg python-dev python-dnspython python-gpgme python-markdown python-novaclient python-pexpect rng-tools screen tshark xsltproc zlib1g-dev
- - sudo apt-get install --assume-yes binutils-gold
- - sudo update-alternatives --install "/usr/bin/ld" "ld" "/usr/bin/ld.gold" 20
- - sudo update-alternatives --install "/usr/bin/ld" "ld" "/usr/bin/ld.bfd" 10
- - sudo update-alternatives --set ld /usr/bin/ld.gold
-
-script:
- - if [ $TASK = "pidl" ]; then
-    git fetch --unshallow;
-   fi
- - ./script/autobuild.py --tail --testbase=/tmp $TASK