Removes ALL PHP 5.x build steps

.travis.yml

@@ -40,10 +40,6 @@ matrix:
         mariadb: 10.0
       env: DB=mariadb MARIADB_VERSION=10.0
 
-    - php: 5.6
-      env: DB=mariadb MARIADB_VERSION=10.1
-      addons:
-        mariadb: 10.1
     - php: 7.0
       env: DB=mariadb MARIADB_VERSION=10.1
       addons:
@@ -64,12 +60,6 @@ matrix:
         mariadb: 10.1
       env: DB=mariadb MARIADB_VERSION=10.1
 
-    - php: 5.6
-      addons:
-        postgresql: "9.2"
-      services:
-        - postgresql
-      env: DB=pgsql POSTGRESQL_VERSION=9.2
     - php: 7.0
       addons:
         postgresql: "9.2"
@@ -89,12 +79,6 @@ matrix:
         - postgresql
       env: DB=pgsql POSTGRESQL_VERSION=9.2
 
-    - php: 5.6
-      addons:
-        postgresql: "9.3"
-      services:
-        - postgresql
-      env: DB=pgsql POSTGRESQL_VERSION=9.3
     - php: 7.0
       addons:
         postgresql: "9.3"
@@ -114,12 +98,6 @@ matrix:
         - postgresql
       env: DB=pgsql POSTGRESQL_VERSION=9.3
 
-    - php: 5.6
-      addons:
-        postgresql: "9.4"
-      services:
-        - postgresql
-      env: DB=pgsql POSTGRESQL_VERSION=9.4
     - php: 7.0
       addons:
         postgresql: "9.4"
@@ -139,15 +117,6 @@ matrix:
         - postgresql
       env: DB=pgsql POSTGRESQL_VERSION=9.4
 
-    - php: 5.6
-      sudo: true
-      dist: trusty
-      group: edge # until the next update
-      addons:
-        postgresql: "9.5"
-      services:
-        - postgresql
-      env: DB=pgsql POSTGRESQL_VERSION=9.5
     - php: 7.0
       sudo: true
       dist: trusty
@@ -246,7 +215,6 @@ matrix:
   allow_failures:
     - php: hhvm
     - php: nightly
-    - php: 5.6
       env: DB=pgsql POSTGRESQL_VERSION=9.5
     - php: 7.0
       env: DB=pgsql POSTGRESQL_VERSION=9.5