Clear out some duplicate package dependencies

I think these duplicate dependencies came in because we were not
correctly always installing "general" packages (see
Ie1b8d09369281059d21da61b2725a457f708ae9e)

Most of these are just extras for the lxml dependencies; I added zlib
devel to general for glance (seems pretty generic), and then that can
go too, as all other packages are specified.

Change-Id: I44b14ca15c64fad9daf1ac8d851704b02ea2eae0
diff --git a/files/rpms/general b/files/rpms/general
index 2a45227..eb479d2 100644
--- a/files/rpms/general
+++ b/files/rpms/general
@@ -32,3 +32,4 @@
 mariadb-devel  # MySQL-python
 postgresql-devel  # psycopg2
 redhat-rpm-config # MySQL-python rhbz-1195207 f21
+zlib-devel
diff --git a/files/rpms/glance b/files/rpms/glance
deleted file mode 100644
index 479194f..0000000
--- a/files/rpms/glance
+++ /dev/null
@@ -1,6 +0,0 @@
-libxml2-devel
-libxslt-devel
-mysql-devel
-openssl-devel
-postgresql-devel
-zlib-devel
diff --git a/files/rpms/keystone b/files/rpms/keystone
index 8074119..7384150 100644
--- a/files/rpms/keystone
+++ b/files/rpms/keystone
@@ -1,4 +1,3 @@
 MySQL-python
-libxslt-devel
 sqlite
 mod_ssl
diff --git a/files/rpms/tempest b/files/rpms/tempest
deleted file mode 100644
index e7bbd43..0000000
--- a/files/rpms/tempest
+++ /dev/null
@@ -1 +0,0 @@
-libxslt-devel
diff --git a/files/rpms/trove b/files/rpms/trove
deleted file mode 100644
index e7bbd43..0000000
--- a/files/rpms/trove
+++ /dev/null
@@ -1 +0,0 @@
-libxslt-devel