Roll back Ubuntu 14.04 Trusty 20191107

Due to issues updating and installing packages when ESM repo is added
we are rolling back recent update to Trusty.

For more context see discussions in https://github.com/docker-library/official-images/pull/7029

library/ubuntu

@@ -43,11 +43,6 @@ Tags: 20.04, focal-20191030, focal, devel
 Architectures: amd64, arm32v7, arm64v8, i386, ppc64le, s390x
 Directory: focal
 
-# 20191107 (trusty)
-Tags: 14.04, trusty-20191107, trusty
-Architectures: amd64, arm32v7, arm64v8, i386, ppc64le
-Directory: trusty
-
 # 20191108 (xenial)
 Tags: 16.04, xenial-20191108, xenial
 Architectures: amd64, arm32v7, arm64v8, i386, ppc64le, s390x