Remove coverage checks because they are wrong.

https://github.com/backstage/backstage/runs/5231780015?check_suite_focus=true

Given this commit which should be at 100% for the above error: https://github.com/backstage/backstage/pull/9605/commits/b84c644fb99378fecb621617f8f4d41218fd92bb

Signed-off-by: Karan Shah <karan.shah@simplybusiness.co.uk>

plugins/airbrake-backend/package.json

@@ -40,19 +40,5 @@
     "dist",
     "config.d.ts"
   ],
-  "configSchema": "config.d.ts",
-  "jest": {
-    "coverageThreshold": {
-      "global": {
-        "functions": 100,
-        "lines": 100,
-        "statements": 100
-      }
-    },
-    "coveragePathIgnorePatterns": [
-      "standaloneServer.ts",
-      "index.ts",
-      "run.ts"
-    ]
-  }
+  "configSchema": "config.d.ts"
 }

plugins/airbrake/package.json

@@ -57,14 +57,5 @@
   },
   "files": [
     "dist"
-  ],
-  "jest": {
-    "coverageThreshold": {
-      "global": {
-        "functions": 100,
-        "lines": 100,
-        "statements": 100
-      }
-    }
-  }
+  ]
 }