Dropped support for EOL versions of MongoDB

Author: UnderGreen

.travis.yml

@@ -15,22 +15,6 @@ env:
     DISTRIBUTION=ubuntu-upstart
     DIST_VERSION=14.04
     MONGODB_VERSION=3.2
-  - >
-    DISTRIBUTION=ubuntu-upstart
-    DIST_VERSION=14.04
-    MONGODB_VERSION=3.0
-  - >
-    DISTRIBUTION=ubuntu-upstart
-    DIST_VERSION=14.04
-    MONGODB_VERSION=2.6
-  - >
-    DISTRIBUTION=centos
-    DIST_VERSION=6-builded
-    MONGODB_VERSION=2.6
-  - >
-    DISTRIBUTION=centos
-    DIST_VERSION=6-builded
-    MONGODB_VERSION=3.0
   - >
     DISTRIBUTION=centos
     DIST_VERSION=6-builded
@@ -39,14 +23,6 @@ env:
     DISTRIBUTION=centos
     DIST_VERSION=6-builded
     MONGODB_VERSION=3.4
-  - >
-    DISTRIBUTION=centos
-    DIST_VERSION=7-builded
-    MONGODB_VERSION=2.6
-  - >
-    DISTRIBUTION=centos
-    DIST_VERSION=7-builded
-    MONGODB_VERSION=3.0
   - >
     DISTRIBUTION=centos
     DIST_VERSION=7-builded