1 files changed, 0 insertions, 45 deletions
diff --git a/files/pl/_wikihistory.json b/files/pl/_wikihistory.json
index 85e8f6414f..6ca2ddb0bc 100644
--- a/files/pl/_wikihistory.json
+++ b/files/pl/_wikihistory.json
@@ -831,12 +831,6 @@
       "cs"
     ]
   },
-  "Learn/Tools_and_testing": {
-    "modified": "2020-07-16T22:38:56.487Z",
-    "contributors": [
-      "chrisdavidmills"
-    ]
-  },
   "MDN": {
     "modified": "2020-02-19T18:16:07.796Z",
     "contributors": [
@@ -959,12 +953,6 @@
       "rebloor"
     ]
   },
-  "Mozilla/Add-ons/WebExtensions/API": {
-    "modified": "2020-05-25T16:21:21.207Z",
-    "contributors": [
-      "rebloor"
-    ]
-  },
   "Mozilla/Add-ons/WebExtensions/Your_first_WebExtension": {
     "modified": "2020-12-12T09:20:57.064Z",
     "contributors": [
@@ -1241,13 +1229,6 @@
       "kubutekf"
     ]
   },
-  "Tools/Performance": {
-    "modified": "2020-07-16T22:36:13.164Z",
-    "contributors": [
-      "jwhitlock",
-      "wbamberg"
-    ]
-  },
   "Tools/Validators": {
     "modified": "2020-07-16T22:35:03.596Z",
     "contributors": [
@@ -3455,12 +3436,6 @@
       "Rev"
     ]
   },
-  "Web/API/SpeechRecognition": {
-    "modified": "2020-10-15T22:25:11.426Z",
-    "contributors": [
-      "malarium"
-    ]
-  },
   "Web/API/Stylesheet/disabled": {
     "modified": "2019-03-23T23:45:18.937Z",
     "contributors": [
@@ -4264,13 +4239,6 @@
       "CreateWWW"
     ]
   },
-  "Web/CSS/CSS_Grid_Layout/Realizing_common_layouts_using_CSS_Grid_Layout": {
-    "modified": "2019-05-22T06:37:48.964Z",
-    "contributors": [
-      "DominikKowalczyk",
-      "vbert"
-    ]
-  },
   "Web/CSS/CSS_Lists_and_Counters/Using_CSS_counters": {
     "modified": "2019-03-23T23:43:40.448Z",
     "contributors": [
@@ -5367,12 +5335,6 @@
       "Sullei"
     ]
   },
-  "Web/HTML/Element/Input": {
-    "modified": "2019-03-23T22:58:57.333Z",
-    "contributors": [
-      "pkuczynski"
-    ]
-  },
   "Web/HTML/Element/a": {
     "modified": "2020-10-15T21:11:09.186Z",
     "contributors": [
@@ -5855,13 +5817,6 @@
       "Alpha"
     ]
   },
-  "Web/HTTP/Headers/Cache-Control": {
-    "modified": "2020-10-15T22:03:23.970Z",
-    "contributors": [
-      "myhau",
-      "stopsopa"
-    ]
-  },
   "Web/HTTP/Headers/Referrer-Policy": {
     "modified": "2020-10-15T22:25:31.082Z",
     "contributors": [