Revert "Merge pull request #38 from Lirt/fix/broken-mysql-dependency/#35"

This reverts commit 73fe802ded9054d2a9e18f83b163565ff425a9b3, reversing
changes made to 13c9ec76aa348890251062dad6b1168910b62e82.
diff --git a/tests/pillar/repo_galeracluster.sls b/tests/pillar/repo_galeracluster.sls
index fa1a757..464a414 100644
--- a/tests/pillar/repo_galeracluster.sls
+++ b/tests/pillar/repo_galeracluster.sls
@@ -3,14 +3,8 @@
     enabled: true
     repo:
       galeracluster:
-        source: 'deb http://releases.galeracluster.com/galera-3/ubuntu {{ grains.get('oscodename') }} main'
-        key_id: BC19DDBA
-        key_server: hkp://p80.pool.sks-keyservers.net:80
-      mysql-wsrep:
-        source: 'deb http://releases.galeracluster.com/mysql-wsrep-5.7/ubuntu {{ grains.get('oscodename') }} main'
+        source: 'deb http://releases.galeracluster.com/ubuntu {{ grains.get('oscodename') }} main'
         key_id: BC19DDBA
         key_server: hkp://p80.pool.sks-keyservers.net:80
       mitaka-staging_PPA:
         source: "deb http://ppa.launchpad.net/ubuntu-cloud-archive/mitaka-staging/ubuntu trusty main"
-        key_id: 8A6844A29F68104E
-        key_server: hkp://p80.pool.sks-keyservers.net:80