Revert "Add missing needles to support Clocks test."

This reverts commit 31987c7688. I
already pushed an equivalent commit earlier.

needles/gnome/apps/clocks/clocks_credits_shown-20220816.json

@@ -1,22 +0,0 @@
-{
-  "area": [
-    {
-      "ypos": 154,
-      "height": 25,
-      "type": "match",
-      "xpos": 480,
-      "width": 64
-    },
-    {
-      "xpos": 355,
-      "ypos": 262,
-      "width": 94,
-      "height": 28,
-      "type": "match"
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "clocks_credits_shown"
-  ]
-}

needles/gnome/gnome_button_cross_remove-20220816.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "ypos": 123,
-      "height": 21,
-      "type": "match",
-      "width": 23,
-      "xpos": 757
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "gnome_button_cross_remove"
-  ]
-}

needles/gnome/gnome_button_delete-20220816.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "ypos": 246,
-      "height": 21,
-      "type": "match",
-      "xpos": 566,
-      "width": 20
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "gnome_button_delete"
-  ]
-}