Remove outdated test result entries from JSON

Author: sylvestre

gnu-result.json

@@ -20367,15 +20367,6 @@
     "xpass": "0",
     "error": "1"
   },
-  "Fri, 09 Jan 2026 14:19:07 +0000": {
-    "sha": "6d1df5697907ed6bb7076e19f1a7c5ca9b812dcb",
-    "total": "685",
-    "pass": "627",
-    "skip": "14",
-    "fail": "43",
-    "xpass": "0",
-    "error": "1"
-  },
   "Fri, 09 Jan 2026 19:52:26 +0000": {
     "sha": "3fddca9c5a3c0c41e1684ec29f3a9ed3cd872ed7",
     "total": "645",
@@ -20385,15 +20376,6 @@
     "xpass": "0",
     "error": "1"
   },
-  "Fri, 09 Jan 2026 20:37:34 +0000": {
-    "sha": "1f8da8d400ec816f391ba5b5e889eb72f4d179ba",
-    "total": "685",
-    "pass": "629",
-    "skip": "13",
-    "fail": "42",
-    "xpass": "0",
-    "error": "1"
-  },
   "Fri, 09 Jan 2026 22:34:34 +0000": {
     "sha": "b684d1606d6f942fbf81aea5b08c38c194254d4e",
     "total": "645",
@@ -20484,15 +20466,6 @@
     "xpass": "0",
     "error": "1"
   },
-  "Tue, 13 Jan 2026 13:26:39 +0000": {
-    "sha": "372baf4dd4548db52d8f62d9e727d147c491cad7",
-    "total": "685",
-    "pass": "634",
-    "skip": "10",
-    "fail": "40",
-    "xpass": "0",
-    "error": "1"
-  },
   "Tue, 13 Jan 2026 16:38:34 +0000": {
     "sha": "718ee7f857eeb53992c30bba5e2cc59bd1bad64a",
     "total": "645",