Remove documentation for unpopular versions

I have removed documentation for versions that have less than 2k daily
downloads.

Author: greg0ire

.doctrine-project.json

@@ -34,12 +34,6 @@
       "slug": "2.18",
       "maintained": true
     },
-    {
-      "name": "2.17",
-      "branchName": "2.17.x",
-      "slug": "2.17",
-      "maintained": false
-    },
     {
       "name": "2.16",
       "slug": "2.16",
@@ -75,16 +69,6 @@
       "slug": "2.10",
       "maintained": false
     },
-    {
-      "name": "2.9",
-      "slug": "2.9",
-      "maintained": false
-    },
-    {
-      "name": "2.8",
-      "slug": "2.8",
-      "maintained": false
-    },
     {
       "name": "2.7",
       "slug": "2.7",
@@ -95,31 +79,6 @@
       "slug": "2.6",
       "maintained": false
     },
-    {
-      "name": "2.5",
-      "slug": "2.5",
-      "maintained": false
-    },
-    {
-      "name": "2.4",
-      "slug": "2.4",
-      "maintained": false
-    },
-    {
-      "name": "2.3",
-      "slug": "2.3",
-      "maintained": false
-    },
-    {
-      "name": "2.2",
-      "slug": "2.2",
-      "maintained": false
-    },
-    {
-      "name": "2.1",
-      "slug": "2.1",
-      "maintained": false
-    },
     {
       "name": "2.0",
       "slug": "2.0",
@@ -129,61 +88,6 @@
       "name": "1.12",
       "slug": "1.12",
       "maintained": false
-    },
-    {
-      "name": "1.11",
-      "slug": "1.11",
-      "maintained": false
-    },
-    {
-      "name": "1.10",
-      "slug": "1.10",
-      "maintained": false
-    },
-    {
-      "name": "1.9",
-      "slug": "1.9",
-      "maintained": false
-    },
-    {
-      "name": "1.8",
-      "slug": "1.8",
-      "maintained": false
-    },
-    {
-      "name": "1.7",
-      "slug": "1.7",
-      "maintained": false
-    },
-    {
-      "name": "1.6",
-      "slug": "1.6",
-      "maintained": false
-    },
-    {
-      "name": "1.5",
-      "slug": "1.5",
-      "maintained": false
-    },
-    {
-      "name": "1.4",
-      "slug": "1.4",
-      "maintained": false
-    },
-    {
-      "name": "1.3",
-      "slug": "1.3",
-      "maintained": false
-    },
-    {
-      "name": "1.2",
-      "slug": "1.2",
-      "maintained": false
-    },
-    {
-      "name": "1.1",
-      "slug": "1.1",
-      "maintained": false
     }
   ]
 }

.symfony.bundle.yaml

@@ -1,17 +1,13 @@
 branches:
-    - "2.5.x"
     - "2.6.x"
     - "2.7.x"
-    - "2.8.x"
-    - "2.9.x"
     - "2.10.x"
     - "2.11.x"
     - "2.12.x"
     - "2.13.x"
     - "2.14.x"
     - "2.15.x"
     - "2.16.x"
-    - "2.17.x"
     - "2.18.x"
     - "2.19.x"
     - "3.0.x"