Remove unused services section

Author: peetw

appveyor.yml

@@ -63,13 +63,6 @@ install:
   - sh: sudo apt-get -y install postgresql-9.6 postgresql-9.6-postgis-2.3
   - sh: sudo sed -i 's/port = [0-9]\+/port = 5432/' /etc/postgresql/9.6/main/postgresql.conf
 
-# start services required for build/tests
-# NOTE: Services are now started in "before_test" section as services are not available on Ubuntu image
-# services:
-  # - mysql56           # start MySQL 5.6
-  # - mysql57           # start MySQL 5.7
-  # - postgresql96      # start PostgreSQL 9.6
-
 #---------------------------------#
 #       build configuration       #
 #---------------------------------#