Tweak Cockpit log severity needles

Sigh, I don't know why we're having so much trouble with fonts
in browsers lately. Drop the match requirement on the needles
that have been matching or nearly matching the most, and remove
older ones that aren't matching.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

needles/cockpit/logs_severity-20170710.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "type": "match",
-      "width": 47,
-      "ypos": 116,
-      "height": 16,
-      "xpos": 338
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "cockpit_logs_severity"
-  ]
-}

needles/cockpit/logs_severity-20191129.json

@@ -5,7 +5,8 @@
       "ypos": 160,
       "width": 62,
       "height": 16,
-      "xpos": 466
+      "xpos": 466,
+      "match": 94
     }
   ],
   "properties": [],

needles/cockpit/logs_severity-20191204.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "type": "match",
-      "height": 16,
-      "xpos": 556,
-      "width": 62,
-      "ypos": 160
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "cockpit_logs_severity"
-  ]
-}

needles/cockpit/logs_severity-20191206.json

@@ -5,7 +5,8 @@
       "width": 62,
       "xpos": 556,
       "ypos": 160,
-      "type": "match"
+      "type": "match",
+      "match": 94
     }
   ],
   "properties": [],

needles/cockpit/logs_severity-cockpit198.json

@@ -1,15 +0,0 @@
-{
-  "area": [
-    {
-      "type": "match",
-      "height": 16,
-      "width": 62,
-      "ypos": 160,
-      "xpos": 529
-    }
-  ],
-  "properties": [],
-  "tags": [
-    "cockpit_logs_severity"
-  ]
-}