Remove apache2 from dependencies

According https://docs.maas.io/2.4/en/release-notes
Since MAAS 2.0 apache2 is a dependency only to maintain updates
from old LTS releases it is safe to remove dependency
for apache2 service from maas_region_services state

Prod related: #PROD-28655 (PROD:28655)

Change-Id: Ia23f9a1e2b0a1647441232497a74083cefdafbad
(cherry picked from commit 6118a5e806fcb5be582620d74324808ee1ae8047)
diff --git a/maas/map.jinja b/maas/map.jinja
index 0671435..99901eb 100644
--- a/maas/map.jinja
+++ b/maas/map.jinja
@@ -18,7 +18,6 @@
   services:
   - maas-regiond
   - bind9
-  - apache2
   bind:
     host: 0.0.0.0
     port: 80