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/debs/general b/files/debs/general
index 7bc90a6..58d1e8b 100644
--- a/files/debs/general
+++ b/files/debs/general
@@ -29,3 +29,4 @@
pkg-config
libmysqlclient-dev # MySQL-python
libpq-dev # psycopg2
+zlib1g-dev